CROOKBACK
crookback, crookbacked, humped, humpbacked, hunchbacked, gibbous, kyphotic
(adjective) characteristic of or suffering from kyphosis, an abnormality of the vertebral column
humpback, hunchback, crookback
(noun) a person whose back is hunched because of abnormal curvature of the upper spine
Source: WordNet® 3.1
Etymology
Noun
crookback (plural crookbacks)
A crooked back, or a person with such a back; a hunchback.
Source: Wiktionary
Crook"back` (krk"bk), n.
Definition: A crooked back; one who has a crooked or deformed back; a
hunchback.
Crook"back`, a.
Definition: Hunched. Shak. `
Source: Webster’s Unabridged Dictionary 1913 Edition