As a boy's name this is a pet form of Jeremy or Gerald, or occasionally of Gerard and Jerome. As a girl's name it is a variant spelling of Gerry, and is sometimes bestowed as an independent given name, as in the case of the American model and actress Jerry Hall (b. 1956).
English: nickname from the animal, Middle English, Old English fox. It may have denoted a cunning individual or been given to someone with red hair or for some other anecdotal reason. This relatively common and readily understood surname seems to have absorbed some early examples of less transparent surnames derived from the Germanic personal names mentioned at Faulks and Foulks.