Толковый словарь английского языка Oxford English Reference - tenon

n. & v. --n. a projecting piece of wood made for insertion into a corresponding cavity (esp. a mortise) in another piece. --v.tr. 1 cut as a tenon. 2 join by means of a tenon. Phrases and idioms tenon-saw a small saw with a strong brass or steel back for fine work. Derivatives tenoner n. Etymology: ME f. F f. tenir hold f. L tenere