Southwest
来自Big Physics
wiktionary
From Middle English southwest, southewest, from Old English sūþwest and sūþanwestan, equivalent to south + west. Cognate with West Frisian súdwest, Dutch zuidwest, German Südwesten, Danish sydvest, Swedish sydväst.
etymonline
southwest (adv.)
Old English suð-west; see south + west. As a noun from early 12c. Related: Southwester; southwesterly.