Ellis : Elisedd. Ellis derives from the Welsh first name of Elisedd, found frequently in early Welsh texts. The 'dd' was lost giving Elise, Elisa, Elisha, Elisa, Elissa and Eliza. ap/ab Ellis becomes Bellis and Bayliss. The famous Ellis Island in New York comes from a Welshman. Although the Welsh name Elias sounds similar to Ellis, their origins are thought to be separate.
Famous people with the Welsh surname Ellis include:
William Clough Ellis - Architect of Portmeirion, the Italian inspired village in North Wales where the cult television series 'The Prisoner' was filmed.
Ellis Island - Named after its owner Samuel Ellis, a Welsh New Yorker who acquired it around the time of the American Revolution. The name York comes from the Brythonic Welsh name Efrog.