Origin: 1475–85; < French; earlier quarefour,Middle Frenchquarrefour < Late Latinquadrifurcum, neuter of quadrifurcus with four forks, equivalent to quadri-quadri- + -furcus -forked, adj. derivative of furcus, furcafork
1477, "place where four ways meet," from O.Fr. carrefor (13c., quarrefour), from L. quadrifurcus "four-forked," from quatuor "four" + furca "fork." "Formerly quite naturalized, but now treated only as French" [OED].