LINGUIST List 13.622

Thu Mar 7 2002

Review: Inflectional Morphology: Theory of Paradigm

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  • Ida Toivonen, Stump (2001) (second review)

    Message 1: Stump (2001) (second review)

    Date: Wed, 6 Mar 2002 15:41:35 -0800 (PST)
    From: Ida Toivonen <toivonencsli.Stanford.EDU>
    Subject: Stump (2001) (second review)


    Stump, Gregory T. (2001) Inflectional Morphology: A Theory of Paradigm Structure. Cambridge University Press, xvi+308pp hardback ISBN 0-521-78047-0, Cambridge Studies in Linguistics 93.

    Ida Toivonen, University of Rochester

    OVERVIEW A fully realized morphological theory is an important contribution to linguistic theory. Gregory Stump's 'Inflectional Morphology: A theory of Paradigm Structure' gives us exactly that: an explicit and general theory of inflectional morphology (it is suggested that the theory can be extended to cover derivational morphology as well). The theory Stump develops is called Paradigm Function Morphology (PFM). PFM takes the paradigm to be the primary object of study, rather than the word. Another important characteristic of the theory is that it treats morphology as an autonomous module of the grammar, separate from syntax and phonology.

    The book consists of a list of abbreviations, eight chapters, footnotes, references and a general index.

    In what follows, I will summarize each individual chapter of the book (see also Avgustinova 2001). After that, I will comment on some of the issues raised in the chapters.

    Chapter 1. (Inferential-realizational morphology) The first chapter sets up a typology of different types of morphological theories. First, lexical and inferential theories are juxtaposed. In a lexical theory of inflectional morphology, associations between morphosyntactic properties and morphemes are listed in the lexicon. In an inferential theory, relations between a root and its various inflected forms are expressed by rules or formulas. PFM is inferential, not lexical. Stump also distinguishes incremental theories from realizational theories. In incremental theories, morphosyntactic information gets added incrementally as morphemes are added to a stem. In a realizational theory, a word's association with certain morphosyntactic properties licenses the appropriate affixes. PFM is realizational.

    Stump first identifies the four types of theories that emerge from different combinations of the distinctions outlined above, and then provides empirical and theoretical arguments for inferential-realizational theories. The chapter ends with an outline of the main characteristics of PFM.

    Chapter 2. (Paradigm functions) This chapter introduces and makes explicit the basic claims and principles of PFM. First, the notions of 'paradigm' and 'paradigm function' are explained. In PFM, paradigms are taken to be a central object of analysis and not epiphenomenal, as they are in many other theories. The word in any given cell of a paradigm is determined by a paradigm function, which applies to a root paired with the morphosyntactic properties associated with the cell in question. An example Stump gives is German 'Buch' (book). A paradigm function applies to <Buch-,{'genitive', 'singular'}> to yield <Buches, {'genitive', 'singular'}>. In a given language, a paradigm function is defined in terms of more specific realization rules, which are organized into blocks. Another type of rule is morphological metageneralizations: a rule about morphophonological regularities associated with several different morphological rules. These foundational concepts are illustrated in an analysis of Bulgarian verb inflection.

    Chapter 3. (Rule competition) Sometimes the situation occurs where two different rules can apply. Chapter 3 argues that such competition is always solved by Panini's principle, according to which the the narrowest rule takes precedence. Some cases exist where no one member of a rule block can be singled out as the narrowest applicable rule. Stump solves this problem by postulating that realization rules may apply in two different modes: unexpanded and expanded. Detailed analyses of Potawatomi and Georgian motivate these assumptions.

    Chapter 4. (Headedness) Chapter 4 is concerned with headed words and the different types of morphological marking they may exhibit. A headed word is defined as a word which arises through the application of a category-preserving rule of derivation or compounding, where a category-preserving rule is a rule that allows a morphosyntactic property to persist from the base to the derived form. An example is the Russian diminutivization rule which adds the ending -iSka': the gender of the base is maintained in the derived diminutive form.

    Headed words fall into three subclasses: Some inflect on the head ('head marking'), some inflect externally, i.e., not on the head ('external marking'), and some inflect both on the head and externally ('double-marking'). An example of double-marking comes from Breton: 'bag-ig' is a headed root, where 'bag' is the head. The plural is 'bag-ou-ig-ou': the plural marker 'ou' appears on the head and also externally. This is handled by dividing category-preserving rules into three types. One type of rule apply to a root to give rise to another root, i.e., root-to-root rules. The expression generated by that rule is external marking. Word-to-word rules are head-marking, and word-to-stem rules are double-marking.

    After these concepts have been established, two generalizations are introduced. 1) If you consider two headed coderivatives (i.e. words which have arisen through the same derivation rule), either both exhibit head marking or neither does. 2) If a root ever exhibits head marking in its inflected paradigm, it always does. These generalizations are captured by the 'head-application principle'. Most of the chapter consists of motivating these generalizations and explaining the principle, but a discussion of some apparent counterexamples is also included.

    Chapter 5. (Rule blocks) In PFM, rules are assumed to be organized into blocks. The rules are not ordered within a block, but are selected in accordance with Panini's principle. Chapter 5 shows how three important types of morphology can be dealt with in terms of rule blocks: portmanteau morphology, parallel rule blocks (classes of morphemes which overlap in their membership), and reversible morphology (classes of morphemes whose relative position varies according to the set of morphosyntactic properties realized). Stump argues that these phenomena provide a strong motivation for 'template' morphology, for which PFM provides an explicit theory. However, paradigm functions are not positive output constraints, so the notion of template in PFM differs in that way from the traditional view of templates.

    The analyses laid out in this chapter crucially rely on rules of referral, which make up a subclass of realization rules (rules of exponence being the other subclass). Rules of referral identify the morphological realization of one set of morphosyntactic properties with that of some contrasting set of properties. Such rules have previously been employed by Arnold Zwicky and others in order to account for syncretism. Stump adopts them for syncretism as well (chapters 2 and 7), but in chapter 5, he extends their use. Under his formalization, rules of referral can refer the realization of a set of morphosyntactic properties to rules which are situated in other rule blocks but realize the same syntactic properties. They are under this definition put to use in the analyses for portmanteau, parallel and reversible morphology. These morphological phenomena thus provide independent motivation for the existence of rules of referral.

    Chapter 6. (Stem alternations) A single lexeme can have a variety of distinct stems within its paradigm. Chapter 6 is concerned with how PFM can account for when and why a particular stem is chosen over another in a given cell of the paradigm.

    An important characteristic of stem alternations is that they are often not predictable from other factors, such as meaning, morphosyntactic feature content or phonology. Stump therefore assumes that a lexeme's stems carry indices to distinguish them from each other. This distinction is morphomic, i.e. it has nothing to do with any component in the grammar except morphology. Stem alternations thus provide an argument for the autonomy of morphology. Stem alternations are dealt with in PFM by two kinds of morphomic rules: stem formation rules and stem indexing rules. Stem indexing rules are appealed to when the difference between two stems does not follow from anything else, such as phonology or morphosyntactic feature content. Morphomic rules constitute a separate type of inflectional rules alongside realization rules (rules of exponence and rules of referral).

    Stems are thus distinguished from each other by the means of stem formation rules or stem indexing rules. The choice of which stem to use in what paradigm cell(s) is determined by stem-selection rules (a type of rule of exponence) or morphological metageneralizations.

    Chapter 7. (Syncretism) Syncretism is mentioned in several chapters, but treated in full in chapter 7. Syncretism is a situation where "two or more cells within a lexeme's paradigm are occupied by the same form" (Stump, p. 212). Stump argues that syncretism is directional or nondirectional. When some form adopts the morphology of another form, the syncretism is said to be directional; otherwise the syncretism is nondirectional. Directional syncretism is unidirectional or bidirectional. When nondirectional syncretism is can be explained as a mere lack of contrast in the system of forms (e.g., third person verb forms are not distinguished for number), it is referred to as unstipulated syncretism. Stipulated, nondirectional syncretism is called symmetrical syncretism. An example of symmetrical syncretism comes from Hua, where 2nd person singular and 1st person plural forms are syncretized. This leaves us with four types of syncretism: unidirectional, bidirectional, unstipulated and symmetrical.

    Unstipulated syncretism simply reflects the fact that the rules of a language are not sensitive to a certain distinction (e.g., number). Directional syncretisms are accounted for by rules of referral. Symmetrical syncretisms are accounted for by means of a metarule, which creates a connection between two rules.

    Chapter 8. (Conclusions, extensions, alternatives) The final chapter summarizes the formal mechanisms employed in PFM. This chapter also discusses some important issues that go beyond the formation of inflected words. One issue is the semantics of inflected words; 'inflectional semantics'. Specifically, bracketing paradoxes (exemplified by 'unhappier') are addressed. Another issue is derivational morphology, which does not otherwise receive much attention in the book (although derivational morphology does play an important role in chapter 4). The book ends with a discussion of an alternative approach, Network Morphology. Network Morphology is similar to PFM in many ways, and Stump points out that it is compatible with most of the assumptions laid out in the previous chapters.

    COMMENTS It follows from PFM that inflectional templates (the organization into position classes) are defined by paradigm functions. Since all inflectional morphology is defined by paradigm functions, there is in effect no difference between templatic inflection and layered (affix-to-base) inflection. Since it has been argued that reference to templates is necessary in order to analyze some inflectional phenomena (see, e.g., chapter 5 of the book under discussion here), the simplest assumption seems to be that ALL morphology is templatic. However, much work in morphology is built solely upon a layered model, and layered morphology is often assumed in addition to template morphology even by researchers who take templates to be necessary in order to capture certain phenomena or to model some languages. In other words, many morphologists seem to have a strong intuition that a layered model is a natural and appropriate way to think about inflectional morphology. Stump's work provides a clear and fully formalized theory of morphology which assumes that all inflection is templatic (but recall that paradigm functions are not positive output constraints). This is very valuable, as it will give proponents of different views something concrete to respond to. It is interesting to note that Stump's argumentation turns the tables in a sense: If we grant the point that some morphological phenomena call upon position classes for their analysis, and Stump can get all inflectional morphology with this model, then the burden of proof falls upon the proponents for layered morphology, and not the morphologists who argue for position classes. References relevant to this topic include McDonough 2000, Spencer 1991, Simpson and Withgott 1986; see also references cited in those works.

    One of the major benefits of this book is its vast empirical coverage: A large variety of morphological phenomena from many typologically diverse languages are considered. In fact, it is striking how little English data is included in the discussion. This seems exotic and unfamiliar to those of us who are used to reading books by English-speaking authors, presenting formal *syntactic* theories. Although other languages are frequently appealed to, new syntactic theories are generally developed with English in mind. PFM is clearly not developed mainly with English in mind, and one of the reasons for this seems quite obvious: PFM is a theory of MORPHOLOGY, and English morphology is not very elaborate. This leads to a question that is often raised by typologists: What would (Western) linguistic theory look like if the research had not from the beginning focussed on English and related western European languages? A linguistic theory originally developed for Warlpiri or Inari Sami would perhaps include an elaborate model of morphology, and syntax would just be seen as a not-so-interesting by-product of semantics and morphology. Stump does not elevate morphology over the other components of grammar, but he does grant it a role that a more English-biased approach would probably not have envisioned.

    Although my reaction to this book is generally very positive, I have one major criticism: At the end of some chapters, I was left with the feeling that a lot of machinery had been introduced to deal with relatively straightforward data. The theory makes use of many different rule types, rule blocks, metageneralizations, and other mechanisms. I feel particularly suspicious of the postulation in chapter 3 that rules can apply in different modes: expanded or unexpanded mode. However, Stump argues that this postulations is necessary to avoid introducing rule ordering (a mechanism adopted by several other theories). In fact, each formal mechanism introduced is carefully motivated. Moreover, a vast variety of morphological phenomena are covered by the theory --- PFM would of course look a lot more simple if important data were pushed aside. Stump treats morphology as an autonomous module, completely independent of other types of linguistic information. This is a good starting point and an interesting contrast to analyses that treat morphology as nothing but phonology and/or syntax. However, I think future research combining PFM with work on the interfaces between morphology and other modules might prove fruitful (Stump also hints at this in the concluding chapter), and perhaps some of the resulting discoveries will help modify or discard mechanisms that at present seem (to me, at least) awkward and overly powerful.

    In sum, the range of languages and linguistic phenomena treated in this work is impressive. Stump develops a clear and precise theory of morphology that I think will be of interest for all scholars interested in word formation, whether their own research adopts the paradigm-based approach or not.

    REFERENCES Avgustinova, T. 2001. Review of Stump, Inflectional Morphology. http://linguistlist.org/issues/12/12-1861.html/.

    McDonough, J. 2000. Athabaskan redux: Against the position class as a morphological category. In: Dressler et al. (eds.), Morphological Analysis in Comparison. Amsterdam: John Benjamins Publishing Company.

    Spencer, A. 1991. Morphological Theory. Oxford: Blackwell Publishers.

    Simpson, J. and Withgott, M. 1986. Pronominal clitic clusters and templates. In: Borer (ed.), Syntax and Semantics 19: The Syntax of Pronominal Clitics. Academic Press.

    ABOUT THE REVIEWER Ida Toivonen received her Ph.D in Linguistics at Stanford University. She is now a Visiting Assistant Professor at the University of Rochester. Her main research interest is syntax, and she works mainly on Swedish, Finnish and Inari Sami.