- boon (n.)
- c.1175, from O.N. bon "a petition, prayer," from P.Gmc. *boniz (cf. O.E. ben "prayer, petition," bannan "to summon;" see ban). The adj. meaning "jolly" (in boon companion) is from unrelated O.Fr. bon "good" (see bon).
- boon (adj.)
- in boon companion (1560s), only real survival of M.E. boon "good" (early 14c.), from O.Fr. bon (see bon).