awn

Etymology

From Middle English aw(u)ne, agune, from Old Norse ǫgn (compare Danish avne), from Proto-Germanic *aganō, *ahanō (“chaff”) (compare Old English agnu, Dutch agen, German Ahne, Agen), from Proto-Indo-European *aḱanā (compare Latin agna (“ear of wheat”), Lithuanian ašnìs (“edge, blade”), Czech osina, Ancient Greek ἄκαινα (ákaina, “spike, prick”), ἄκανος (ákanos, “pine-thistle”), Sanskrit अशनि (aśáni, “thunderbolt, arrow tip”)), from Proto-Indo-European *h₂eḱ- (“sharp”). More at edge.

noun

1. The bristle or beard of barley, oats, grasses, etc., or any similar bristlelike appendage; arista.