Whittet1) Patronymic: Derived from medieval 'huit' (white) (Old English). Used to describe someone with white hair or an unusually pale complexion. The suffix 'et' is a shortened form of the French 'petit' (small) thus Whittet may describe "a little white" or "son of White"2) Topographical: 'Wiht' (dweller by a bend or curve [in a river or road]) (Old English), hence Whittet would describe "the son of he who dwelt by a river\road bend"
1 Jean WITTET b: 21 October 1740 in Dunblane, Perthshire, Scotland + James ALEXANDER b: ca 16 November 1740 in Dunbarney, Perthshire, Scotland, m: 14 June 1765 in Rhynd, Perthshire, Scotland