the English word exists:http://www.bartleby.com/61/14/R0001400.html
1. A cut or groove along or near the edge of a piece of wood that allows another piece to fit into it to form a joint. 2. A joint so made.
but is both wider and narrower in meaning.
narrower, since the definition says it is on or near the edge of a piece of wood.
a Nut, on the other hand, can be cut anywhere
wider, since, see above, it can also refer to the joint made using it
Nut, on the other hand, only refers to the cut, not to the joint
since these are relatively minor differences, and since most queries will concern the 'funny' spelling of rabbit, and be sufficiently informed with Nut, I think the entry can stay as is.