Häunch, n.
(hänch), n. [Fr. hanche, Pr., Sp., Pg., & It. anca, from O. D. hancke, hencke, O. H. Ger. ancha.] The hip; that part of an animal body which lies between the last ribs and the thigh; the rear; the hind part.
Haunches of an arch (Arch.), the parts between the crown and the springing. Gwilt.