GNU Collaborative International Dictionary of English

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1.       
   Awn , n. [OE.  awn, agune, from Icel. ögn, pl. agnir; akin to Sw. agn, Dan. avne, Goth. ahana, OHG. agana, G. agen, ahne, chaff, Gr. ἄχνη, 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.
   
   1913 Webster