TROUGH, noun trauf. 1. A vessel hollow longitudinally, or a large log or piece of timber excavated longitudinally on the upper side; used for various purposes. 2. A tray. [This is the same word dialectically altered.] 3. A canoe; the rude boat of uncivilized men. 4. The channel that conveys water, as in mills. The trough of the sea, the hollow between waves.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI