Source : Webster's Revised Unabridged Dictionary (1913)

Osprey \Os"prey\, Ospray \Os"pray\, 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}.] (Zo["o]l.)
   The fishhawk.