Mare (mâr), n. [OE. mere, AS. mere, myre, fem of AS. mearh horse, akin to D. merrie mare, G. mähre, OHG. marah horse, meriha mare, Icel. marr horse, OCelt. marka (Pausan. 19, 19,4), Ir. marc, W. march. Cf. Marshal.] The female of the horse and other equine quadrupeds.
[1913 Webster]