I heard on PBS in an interview with an aged Cajun woman about how the term Zydeco was born. No idea if it's true, but it sounded so. Apparently the local slang for partying was "to cut beans" - or in French, couper les haricots. Now, in real French, haricots takes an "H aspiré" and so the "s" on the end of "les" would not normally be pronounced, but the Cajuns do the "liaison" and pronounced it "couper les_zaricots" - with the R being pronounced very hard, almost a "D" - it became pronounced "zadico" and thus was born the term Zydeco for Cajun PARTY music.