‖n. [ L., fr. Gr. &unr_; an addition, fr. &unr_; to put to, to add; &unr_; to + &unr_; to put, place. ]
a. [ Cf. Gr. &unr_; disposed to add, &unr_; put on. ] Of or pertaining to prosthesis; prefixed, as a letter or letters to a word. [ 1913 Webster ]