Arris

• POS: Noun
• HYPHEN: ar=ris

CIDE DICTIONARY

Arris, n. [OF. areste, F. arête, fr. L. arista the top or beard of an ear of grain, the bone of a fish.].

 The sharp edge or salient angle formed by two surfaces meeting each other, whether plane or curved; -- applied particularly to the edges in moldings, and to the raised edges which separate the flutings in a Doric column.  P. Cyc.  [1913 Webster]

Arris fillet, a triangular piece of wood used to raise the slates of a roof against a chimney or wall, to throw off the rain. Gwilt. -- Arris gutter, a gutter of a V form fixed to the eaves of a building. Gwilt.

OXFORD DICTIONARY

Arris, n. Archit. a sharp edge formed by the meeting of two flat or curved surfaces.

Etymology

corrupt. f. F areste, mod. AR|TE