Kelpie
Pronunciation : Kel"pie, Kel"py
Part of Speech : n.;
Etymology : [Cf. Gael. cailpeach, calpach, colpach, a heifer, steer, colt, colpa a cow or horse.] (Scotch Myth.)
Definition : Defn: An imaginary spirit of the waters, horselike in form, vulgarly believed to warn, by preternatural noises and lights, those who are to be drowned. Jamieson.
pl. Kelpies.
Source : Webster's Unabridged Dictionary, 1913