basin (n.) Look up basin at
"large shallow vessel or dish," c. 1200, from Old French bacin (11c., Modern French bassin), from Vulgar Latin *baccinum, from *bacca "water vessel," perhaps originally Gaulish. Meaning "large-scale artificial water-holding landscape feature" is from 1712. Geological sense of "tract of country drained by one river or draining into one sea" is from 1830.