Giaour

Giaour, the Italian spelling (popularised by Byron) of a Turkish word, applied by the Turks to all who reject Mohammedanism, especially to European Christians. By some it is said to be derived from the Persian qāwr, 'infidel;' by others to be a corrupt form of the Arabic Kāfir, 'infidel' (cf. Kaffirs, the African people, and the Guebres, q.v.).