portage
n.
early 15c., "action of carrying," said to be from Old French portage, Medieval Latin portaticum, though the meaning of these was "tax paid on entering a town," from Latin portare "to carry" (see port, n.1). Sense of "carrying of boats from one navigable water to another" is from 1690s, reinforced in Canadian French.
〔蒋〕[port运,-age表示行为,费用] 运输,搬运,运费