

Anglicized form of Gaelic Ó Ciardha, a midland family name meaning ‘descendant of Ciardha’, a personal name derived from ciar ‘dark’, ‘black’. Irish: Anglicized form of Gaelic Mac Fhiachra ‘son of Fiachra’.
Habitational name from Carey in Devon or Cary in Somerset, named for the rivers on which they stand; both river names probably derive from the Celtic root car- ‘love’, ‘liking’, perhaps with the meaning ‘pleasant stream’. English (of Norman origin): habitational name from the manor of Carrey, near Lisieux, Normandy, France, of uncertain origin.
Variant of Carew.
Possibly an Americanized form of German Gehrig or Gehring.