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march [march 词源字典]: 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]
demarche (n.): 1650s, "walk, step," from French démarche (15c.) literally "gait, walk, bearing," from démarcher (12c.) "to march," from de- (see de-) + marcher (see march (v.)). Meaning "a diplomatic step" attested from 1670s. A word never quite anglicized.
march (v.): "to walk with regular tread," early 15c., from Middle French marcher "to march, walk," from Old French marchier "to stride, march," originally "to trample, tread underfoot," perhaps from Frankish *markon or some other Germanic source related to obsolete Middle English march (n.) "borderland" (see march (n.2)). Or possibly from Gallo-Roman *marcare, from Latin marcus "hammer," via notion of "tramping the feet." Meaning "to cause to march" is from 1590s. Related: Marched; marching. Marching band is attested from 1852. Italian marciare, Spanish marchar are said to be from French.
march (n.1): "act of marching," 1580s, from march (v.) or else from Middle French marche (n.), from marcher (v.). The musical sense first attested 1570s, from notion of "rhythmic drumbeat" for marching. Transferred sense of "forward motion" is from 1620s.
mush (interj.): command to sled dogs, first recorded 1862, as mouche, perhaps altered from French marchons! "advance!" (imperative of marcher "to march;" see march (v.)).
marc: "The refuse of grapes or other fruit that have been pressed for winemaking", Early 17th century: from French, from marcher in the early sense 'to trample'.