Derivative of Jane, with the addition of the suffix -ice, abstracted from girls' names such as Candice and Bernice. It seems to have been first used as the name of the heroine of the novel Janice Meredith by Paul Leicester Ford, published in 1899.
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.