possibly vs perchance

possibly and perchance both are adverbs.

Word	Noun	Adjective	Verb	Adverb
possibly	No	No	No	Yes
perchance	No	No	No	Yes

As adverbs, possibly and perchance are synonyms defined as:

Other synonyms of possibly include maybe, mayhap, peradventure, perhaps.

possibly (adverb)	perchance (adverb)
by chance	through chance
to a degree possible of achievement or by possible means	by chance