Jenkin, Genge, Jankin, Jankins, Jank, Janks, Jenckes, Jeckes, Jehu, Jencyn, Jenks, Jinkin, Jinkins, Jinkson, Jynkson, Siencyn
Jehu - a nickname for John that became a surname. Origin (English) Jankin. Welsh Seincyn. S. possessive (sibling). In use in Wales and worldwide. Name appears predominantly in South of Wales.