Carew
Carew is a Welsh language and Cornish Language habitation type surname; it has also been used as a synonym for the Irish patronymic Ó Corráin. Carey can be a variant.
The Cambro-Norman Carew family sprang from the same stock as the FitzGeralds: viz. from the union of Gerald de Windsor alias Gerald FitzWalter (1070-1136), the Norman Constable of Pembroke, Pembrokeshire and Nest ferch Rhys, Princess of Deheubarth, the 'Helen of Wales'. These Carews descend from Gerald and Nest's oldest son William FitzGerald de Carew. The family home was at Carew, Pembrokeshire, Welsh language 'Caeriw', from a fortified site and later castle, originally a holding of Nest's royal father, Rhys Ap Tewdwr. The usual derivation offered is that the root word is 'caer', Middle Welsh for 'fort'; the second element being possibly 'rhiw' - 'slope', or 'yw' - 'yew' (tree). The Pembrokeshire Coast National Park website has 'Caerau - fort (Locally pron Carey)'.