mortise /ˈmɔː(ɹ).tɪs/verb 3noun 2forms 3 verb3 •To cut a mortise in. •To join by a mortise and tenon. •To adjust the horizontal space between selected pairs of letters; to kern. noun2 •A hole that is made to receive a tenon so as to form a joint. •Stability; power of adhesion. formsmortised · mortising · mortises