PERADVENTURE
possibly, perchance, perhaps, maybe, mayhap, peradventure
(adverb) by chance; “perhaps she will call tomorrow”; “we may possibly run into them at the concert”; “it may peradventure be thought that there never was such a time”
peradventure
(noun) doubt or uncertainty as to whether something is the case; “this proves beyond peradventure that he is innocent”
Source: WordNet® 3.1
Etymology
Adverb
peradventure (not comparable)
(archaic) Perchance or maybe; perhaps; supposing.
Noun
peradventure (plural peradventures)
Chance, doubt or uncertainty.
Source: Wiktionary
Per`ad*ven"ture, adv. & conj. Etym: [OE. per aventure, F. par
aventure. See Per, and Adventure.]
Definition: By chance; perhaps; it may be; if; supposing. "If peradventure
he speak against me." Shak.
Peradventure there be fifty righteous within the city. Gen. xviii.
24.
Per`ad*ven"ture, n.
Definition: Chance; hap; hence, doubt; question; as, proved beyond
peradventure. South.
Source: Webster’s Unabridged Dictionary 1913 Edition