Jancis \j(a)-ncis, jan-cis\ as a girl's name. Modern blend of Jan and Francis (Latin) "frenchman". First used in the novel "Precious Bane" (1924) by Mary Webb, for the character Jancis Beguildy. Jancis has 2 variant forms: Jances and Jancess. Baby names that sound like Jancis are Jenesis, Eunices, Genesis, Jennasis and Genisis.