(rig = back), crook-back.

One who has a crooked back, a hunchback.

A crooked back. Obsolete.

a back with a ‘bunch’ or hump.

crump-back n. a hunchback, a crook-back; also crump-backed, crump-footed, crump-shouldered, etc.

(ˌhump-ˈback.) A back having a hump; a humped back.

/ˈhʌnʃˈbæk/ A hunched back.

a humpback.

Backward curvature of the spine; humpback.

= cyphosis, n.