Origin: 1350–1400; Middle English valo(u)r < Anglo-French; Middle French valeur < Late Latin valōr-, stem of valor worth, equivalent to Latin val(ēre) to be of worth + -or-or1
c.1300, "value, worth," from O.Fr. valour "strength, value, valor," from L.L. valorem (nom. valor) "value, worth," from stem of L. valere "be worth, be strong" (see valiant). The meaning "courage" is first recorded 1581, from It. valore, from the same L.L. word. (The M.E.