Gael (n.) Look up Gael at Dictionary.com
1810, from Scottish Gaelic Gaidheal "member of the Gaelic race" (Irish, Scottish, Manx), corresponding to Old Irish Goidhel (compare Latin Gallus under Gallic, also see Galitia, Galatians). The native name in both Ireland and Scotland; owing to the influence of Scottish writers Gael was used in English at first exclusively of Highland Scots.