from The Century Dictionary.
- noun A scupper.
Sorry, no etymologies found.
Another method of dealing with hands who could not keep their eyes open when on watch was to reeve a rope through the scupper-hole, attach one end to the person, and the other to a coal basket, which was thrown overboard.
He must have thought this fine sport, just as captains of fire engines love to point the tube of their hose; for he kept me running after him with full buckets of water, and sometimes chased a little chip all over the deck, with a continued flood, till at last he sent it flying out of a scupper-hole into the sea; when if he had only given me permission, I could have picked it up in a trice, and dropped it overboard without saying one word, and without wasting so much water.