As described in historical dictionaries

An Etymological Dictionary of Family and Christian Names (1857)

A young goat; also, Kid, from the Saxon Cythan, to show, discover, or make known.

Arthur, William (1857) An Etymological Dictionary of Family and Christian Names. New York: Sheldon, Blakeman. Public Domain.


Patronymica Britannica (1860)

KIDD. KID. The young of a goatanalogous to Lamb, Colt, &c,

Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.


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