I'm not clear on an aspect of linguistic terminology. I have a programming background, so maybe my conception of this is too hard-edged, but here goes.
There are some grammatical categories into which we can classify lexemes, namely Verbs, Nouns, Adverbs, etc. We call each of those categories a part of speech. So there's a super-category named Parts of Speech. In many languages, verbs are further divided into conjugations, and nouns into declensions.
I'm wondering whether there's a standard term referring to such subdivisions of the parts of speech. That is, a term meaning "conjugation or declension" that's analogous to "part of speech", meaning "verb, noun, or whatever".
I would use the term "category", but it's already used to refer to things like Tense, Aspect, Number, Gender, and so forth, which seem to me to be orthogonal to what I'm talking about. That is for instance, in a given language, verbs may inflect for TAMV, person, and number, with each conjugation doing it differently.