A Cornish name, usually as a diminutive form of Jennifer.
Doublet of Ivanka, Jan, Janelle, Janet, Janey, Janine, Jeanette, Jeanie, Jeannette, Jeannine, Jen, Jenny, Jessie, Jo, Jody, Juanita, Shanae, Sinead, and Vanna when based on Jenny's other derivations.