\Per`ad*ven"ture\, adv. & conj. [OE. per aventure,
F. par aventure. See {Per}, and {Adventure}.]
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.
Chance; hap; hence, doubt; question; as, proved beyond
peradventure. --South.