bayou/ˈbaɪ.(j)uː/EtymologyFrom Louisiana French bayou, from Choctaw bayuk (“a creek”). Doublet of bogue.bayou means A surname. Lexicurio rates it Distinctive — a strength score of 69 out of 100.nameA surname.nounA slow-moving, often stagnant creek or river.“You natural persons old and young! / You on the Mississippi and on all the branches and bayous of the Mississippi! / You friendly boatmen and mechanics! you roughs!”A swamp; a marshy (stagnant) body of water.“At that time I had no staff officer who could be trusted with that duty. In the woods, at a short distance below the clearing, I found a depression, dry at the time, but which at high water became a slough or bayou.”