西にし回まわり航こう路ろ

noun

westbound sea route; east-to-west sea route

Refers to a sea route that goes westward, often used in historical contexts such as the Spanish trade route from the Philippines to Mexico.

• 西にし回まわり航こう路ろは、マゼラン海かい峡きょうを経けい由ゆして太たい平へい洋ようを横おう断だんした。

  The westbound sea route crossed the Pacific via the Strait of Magellan.