rumpbone
1natch-bone — n. Aitch bone, edge bone, rumpbone …
2aitch|bone — «AYCH BOHN», noun. 1. the rumpbone, especially of a steer. 2. a cut of beef taken from or including this bone. Also, edgebone. ╂[Middle English an ache bone, misdivision of earlier a nache( bone) < Old French nache < Late Latin natica <… …