march: English has three words march. The commonest is also the most recent: march ‘walk as a soldier’ [16]. Etymologically, this means virtually ‘trample down’. It comes via French marcher from Gallo-Roman *marcāre, a verb derived from late Latin marcus ‘hammer’. The month-name March [12] goes back via Old French to Latin Martius, literally the ‘month of Mars, the god of war’ (Mars also gave English martial). March ‘boundary’ [13] has now almost died out, apart from its use in the plural (‘the Marches’) as a geographical name.
It comes via Old French marche from medieval Latin marca (source also of marquis and marchioness); and marca in turn goes back through Frankish *marka to prehistoric Germanic *markō, source of English mark. => martial; mark, marquis[march etymology, march origin, 英语词源]