From Middle English homage, from Old French homage, hommage, from Medieval Latin homināticum (“homage, the service of a vassal or 'man'”), from Latin homō (“a man, in Medieval Latin a vassal”) + -āticum (noun-forming suffix). The American pronunciations in /-ɑːʒ/ and with silent h are due to confusion with the nearly synonymous doublet hommage, which is indeed pronounced /oʊˈmɑːʒ/.