Containing around 3,700 dialect words from both Cornish and English,, this glossary was published in 1882 by Frederick W. P. Jago (1817–92) in an effort to describe and preserve the dialect as it too declined and it is an invaluable record of a disappearing dialect and way of life.
Some think that it is not possible to lay down rules that would guide a stranger in acquiring a grammatical and accurate knowledge of the Welsh language. But surely those who have studied the language carefully will feel that it is possible to gain a perfect understanding of Welsh, its many idioms and peculiarities nonewithstanding.
This work was undertaken with the aim of faciliating the study of the Welsh language, and of lessening the difficulties that have been wholly passed over in silence by preceding grammarians. Hopefully it will surpass its predecessors and lay the base of a work that could pretend to the accuracy and completeness of the Latin and Greek grammars (adapted from the introduction).