From Middle English rabeten, from Old French raboter, rabouter (“to thrust back”, verb), from Old French re- + boter, bouter.
The noun is from Middle English rabet, from Old French rabot, from the verb.
rabbet (plural rabbets)
- A longitudinal channel, groove, or recess cut out of the edge or face of a plank of wood or other material; especially, one intended to fit another member to form a joint.
A rabbet (rebate) for joining wood
channel, groove of recess in e.g. wood
rabbet (third-person singular simple present rabbets, present participle rabbeting, simple past and past participle rabbeted)
- (transitive) To cut a rabbet in a piece of material.