‖n. [ L., fr. Gr. &unr_; an addition, fr. &unr_; to put to, to add; &unr_; to + &unr_; to put, place. ] 1. (Surg.) The addition to the human body of some artificial part, to replace one that is wanting, as a log or an eye; -- called also prothesis. [ 1913 Webster ]
2. (Gram.) The prefixing of one or more letters to the beginning of a word, as in beloved. [ 1913 Webster ]