Awn (?), n. [OE. awn, agune, from Icel. ogn, pl. agnir; akin to Sw. agn, Dan. avne, Goth. ahana, OHG. agana, G. agen, ahne, chaff, Gr. , AS. egla; prob. from same root as E. acute. See 3d Ear. 1.] Bot.
The bristle or beard of barley, oats, grasses, etc., or any similar bristlelike appendage; arista.
Gray.
© Webster 1913.