Word Origin & History
c.1200, from Anglo-Fr. marche, from O.Fr. marz, from L. Martius (mensis) "(month) of Mars," from Mars (gen. Martis). Replaced O.E. hreðmonaþ, of uncertain meaning, perhaps from hræd "quick, nimble, ready, active, alert, prompt." For March hare, proverbial type of madness, see mad.