cambium
cambium 〈拉〉(古)(土地、货币、债务的)交换;互换
cambium (kam-bee-[schwa]m). [Law Latin “exchange”] Hist. 1. An exchange of money, debt, or land. cambium locale. A contract of exchange in which a person agrees to pay a sum of money at one location in consideration of money received at another location. — Also termed cambium mercantile; cambium trajectitium. cambium reale. An exchange of land.