glossarist vs scholiast

glossarist and scholiast both are nouns.

Word	Noun	Adjective	Verb	Adverb
glossarist	Yes	No	No	No
scholiast	Yes	No	No	No

As nouns, scholiast is a hypernym of glossarist; that is, scholiast is a word with a broader meaning than glossarist:

glossarist: a scholiast who writes glosses or glossaries
scholiast: a scholar who writes explanatory notes on an author (especially an ancient commentator on a classical author)

glossarist (noun)	scholiast (noun)
a scholiast who writes glosses or glossaries	a scholar who writes explanatory notes on an author (especially an ancient commentator on a classical author)