here vs hither

here is a noun but hither is not a noun.

Word	Noun	Adjective	Verb	Adverb
here	Yes	Yes	No	Yes
hither	No	No	No	Yes

As adverbs, here and hither are synonyms defined as:

here (noun)	hither (noun)
the present location; this place; location, proximal pronoun; demonstrative pronoun, location; quantifier: demonstrative determiner, singular, proximal

here (adjective)	hither (adjective)
being here now

here (adverb)	hither (adverb)
in or at this place; where the speaker or writer is	to this place (especially toward the speaker)
to this place (especially toward the speaker)
in this circumstance or respect or on this point or detail
at this time; now