Mor"tise (?), n. [F. mortaise; cf. Sp. mortaja, Ar. murtazz fixed, or W. mortais, Ir. mortis, moirtis, Gael. moirteis.]
A cavity cut into a piece of timber, or other material, to receive something (as the end of another piece) made to fit it, and called a tenon.
Mortise and tenon Carp., made with a mortise and tenon; joined or united by means of a mortise and tenon; -- used adjectively. -- Mortise joint, a joint made by a mortise and tenon. -- Mortise lock. See under Lock. -- Mortise wheel, a cast-iron wheel, with wooden clogs inserted in mortises on its face or edge; -- also called mortise gear, and core gear.
© Webster 1913.
Mor"tise, v. t. [imp. & p. p. Mortised (?); p. pr. & vb. n. Mortising.]
1.
To cut or make a mortisein.
2.
To join or fasten by a tenon and mortise; as, to mortise a beam into a post, or a joist into a girder.
© Webster 1913.