name given to the fertile upland region along the eastern slope of the Appalachians, 1755, originally piemont, from Italian Piemonte, literally "mountain foot," name of the region at the foot of the Alps in northern Italy (see Piedmont). With -d- added by 1855. Applied to similar features of other mountain ranges by 1860.[piedmont etymology, piedmont origin, 英语词源]
region in northern Italy, from Old Italian pie di monte "foot of the mountains," from pie "foot" (see foot (n.)) + monte "mountain" (see mount (n.)). Related: Piedmontese.