Webster's Revised Unabridged Dictionary · 1913

Poitrel

Poitrel , noun

[Old English poitrel, French poitrail, from Latin pectorale a breastplate, from pectoralis, a. See Pectoral, a.]

(Anc. Armor) The breastplate of the armor of a horse. See Peytrel. [Obsolete] — Chaucer