adv. 25B6; adverb (poetic/literary) MAYBE, perhaps, possibly, for all one knows, it could be, it's possible, conceivably; N. English happen; poetic/literary peradventure.
PERCHANCE
Meaning of PERCHANCE in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012