dovetail
n//ˈdʌvteɪl//laxstjärt, laxknut, laxstjärtskura
In full dovetail joint: a type of joint where adjoining components are fastened by multiple tenons cut into wedge shapes resembling a dove's tail, which interlock with mortises having corresponding shapes.
A tenon cut into a wedge shape resembling a dove's tail so that it interlocks with a mortise having a corresponding shape in a dovetail joint.