n.1.A coarse kind of thick woolen cloth, worn by the poor in the Middle Ages; also, a woolen cap or hood worn over the shoulders or over the head.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Brassicaceae Rorippa Yuraq birrus, 33 nasturtium-aquaticum berros blanco (L.) Hayek Bromeliaceae Puya sp.
During the early years of the Roman empire in Britain there was the birrus Britannicus, which was a hooded cape which was fastened at the front.