Seaway

Part of speech: noun

Definitions

1. A navigable route through a body of water allowing ships to travel between two points ; a passage in the sea used for commercial or recreational boating ; a channel in oceanic or coastal waters enabling maritime transport
2. A water path deep and wide enough for vessels to move from one area to another ; a marine corridor facilitating ship navigation and access to ports ; an aquatic passageway suited for travel by sea vessels or boats
3. A stretch of water designated for ship movement between landmasses or across oceans ; a sea route used for navigation and transportation by different types of watercraft ; a defined aquatic course that supports safe passage for maritime travel

Etymology: "Seaway" is about as transparent as English compounds get: "sea" plus "way," a path through the water. What makes it more interesting is how old the pairing is. Its Old English ancestor, "sǣweġ," already meant a path through the sea, and it passed into Middle English as "seewey." Its closest relatives in other languages show the same logic at work: German "Seegang" and Saterland Frisian "Seegong" are built on the same "sea" plus "going" idea, but they have drifted in a different direction, meaning the swell or motion of the sea itself. That divergence is the most telling part. In English, the word kept the sense of a route, while German speakers used the equivalent compound for the rolling waves a ship had to ride. The same starting image, a way across the water, split into two different things a sailor might have to reckon with.

Synonyms: waterway, channel, passage, strait, route