Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
RACK
As described in historical dictionaries
Patronymica Britannica (1860)
RACK. This word, in our provincial dialects, and in Old English, has so many meanings, that it Is difficult to decide on the probable origin of the name. Halliwell gives no less than seventeen distinct definitions of the word, and I could, if need were, add several more.
Surname type: Location or geographical feature
Origin: English
Region of origin: British Isles
Country of origin: England
Religion of origin: Christian
Language of origin: English