Main Entry: ¹rab·bet

Pronunciation: \ˈra-bət\

Function: noun

Etymology: Middle English rabet, perhaps from Middle French rabat act of forcing down, from Old French rabattre to force down, fold over, reduce — more at rebate

Date: 14th century

: a channel, groove, or recess cut out of the edge or face of a surface; especially : one intended to receive another member (as a panel)