fairway (n.)youdaoicibaDictYouDict[fairway 词源字典]
1580s, "navigational channel of a river," from fair (adj.) + way (n.). Golfing sense is by 1898.[fairway etymology, fairway origin, 英语词源]
stairway (n.)youdaoicibaDictYouDict
1767, from stair + way (n.).