- boon (n.)
- late 12c., bone "petition," from O.N. bon "a petition, prayer," from P.Gmc. *boniz (cf. O.E. ben "prayer, petition," bannan "to summon;" see ban).
- boon (adj.)
- in boon companion (1560s), only real survival of M.E. boon "good" (early 14c.), from O.Fr. bon (see bon).