portage (n.)youdaoicibaDictYouDict[portage 词源字典]
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.[portage etymology, portage origin, 英语词源]