pond: [13] Pond is historically the same word as pound ‘enclosure’. The differentiation between the two was established early on, although pound continued to be used for ‘pond’ in Scotland and in some English dialects until quite recently. The common denominator is that ponds were originally specifically used for keeping fish in. The reason for the phonetic change from pound to pond is not known. => pound
pond (n.)
c. 1300 (mid-13c. in compounds), "artificially banked body of water," variant of pound "enclosed place" (see pound (n.2)). Applied locally to natural pools and small lakes from late 15c. Jocular reference to "the Atlantic Ocean" dates from 1640s. Pond scum (Spirogyra) is from 1864 (also called frog-spittle and brook-silk. As figurative for "someone extremely repulsive," from 1984.
例文
1. Tourist numbers from across the pond have dropped dramatically.
大西洋の彼岸からの観光客数が激減している。
2.Usually，the presentation is made on the other side of the pond .
通常、このような展示は大西洋の反対側で行われます。
3.There was an unappealing film of slim on top of the pond .
池の表面にはべたべたした汚泥がある。
4.Yesterday police frogmen dragged a small pond on the Common.
昨日、警察のカエル人が公共の芝生の上の小さな池で引き揚げた。
5.His pond has been choked by the fast-growing weed.