pontoon

英文词源

pontoon

pontoon: English has two words pontoon. The earlier, ‘floating structure’ [17], comes via French ponton from Latin pontō ‘bridge made of boats’, a derivative of pōns ‘bridge’. (Pontō, presumably the same word, was also used for a sort of Gaulish boat, and in that sense is the source of English punt.) Pontoon the card game [20] is an alteration of French vingt-et-un ‘twenty-one’ (the perfect score in pontoon being twenty-one) based on the other pontoon.

pontoon (n.)

"flat-bottomed boat" (especially one to support a temporary bridge), 1670s, from French pontoon, from Old French ponton (14c.) "bridge, drawbridge, boat-bridge; flat-bottomed boat," from Latin pontonem (nominative ponto) "flat-bottomed boat," from pons "bridge" (see pons). Pontoon bridge is first recorded 1778.