flexional

The more important elements of differentiation between this latter and classic Latin were these: phonologically, it made principles of vowel quality and syllabic stress superior to the classic distinction of quantitation; morphologically, it tended greatly toward simplification, since it ignored many of the classic flexional variations; syntactically, its analytical methods prevailed over the complicated system of word-order which the elaborateclassic inflexions made possible.

The Catholic Encyclopedia, Volume 14: Simony-Tournon 1840-1916 1913

I refer to the renouncing of the distribution of its nouns into masculine, feminine, and neuter, as in German, or even into masculine and feminine, as in French; and with this, and as a necessary consequence of this, the dropping of any flexional modification in the adjectives connected with them.

English Past and Present Richard Chenevix Trench 1846

It will fare not otherwise, as I am bold to predict, with the flexional genitive, formed in ‘s’ or ‘es’ (see p. 161).

English Past and Present Richard Chenevix Trench 1846

Because modern English has shed most of its flexional endings, its words are endowed with the happy facility of changing their so-called parts of speech with great ease.

VERBATIM: The Language Quarterly Vol IX No 3 1983