Rabbet

v. t. [imp. & p. p. RABBETED; p. pr. & vb. n. RABBETING.] [Cf. Fr. raboter, to plane, plane down, rabot, a plane.]

1Sense 1. To cut, as the edge of a board, in a sloping manner, so that it may form a joint with another board, similarly cut, by lapping; also, to cut a rectangular groove, or recess, longitudinally in the edge of, as a board, timber, or the like, to receive a corresponding projection upon the edge of another board, &c., so as to form a joint. Moxon.

2Sense 2. To lap and unite the edges of, as boards, &c., by a rabbet.

n. [See supra, and cf. REBATE, 2.] A sloping cut made upon the edge of a board, so that it may form a joint with another board, similarly cut, by lapping; also, a rectangular recess, or groove, cut longitudinally in the edge of a board, timber, or the like, to receive a corresponding projection made upon the edge of another board, &c., required to fit into it. Oxf. Gloss.