Definition of mortise and tenon in English:

mortise and tenon

noun

  • A joint composed of a mortise and a tenon (also: the component parts of this); the method of joining pieces of wood, etc., by means of a mortise and a tenon. Frequently attributive, especially in "mortise and tenon joint".

Origin

Mid 17th century; earliest use found in John Weever (d. 1632), poet and antiquary.