scupper (n.)youdaoicibaDictYouDict[scupper 词源字典]
"opening in a ship's side at deck level to let the water flow out," early 15c., perhaps from Old French escopir "to spit out," or related to Dutch schop "shovel," or from Middle English scope "scoop" (see scoop (n.)).[scupper etymology, scupper origin, 英语词源]