Osprey, n. [Through OF. fr. L. ossifraga (orig., the bone breaker); prob. influenced by oripelargus (mountain stork, a kind of eagle, Gr. ); cf. OF. orpres, and F. orfraie. See Ossifrage.].
Osprey, n. (pl. -eys)
1 a large bird of prey, Pandion haliaetus, with a brown back and white markings, feeding on fish. Also called fish-hawk.
2 a plume on a woman's hat.
Etymology
ME f. OF ospres app. ult. f. L ossifraga osprey f. os bone + frangere break
Also see definition of "Osprey" in Bible Study Dictionaries