hippopotamus: [16] Etymologically, a hippopotamus is a ‘river horse’. The word comes, via Latin, from late Greek hippopótamos, a lexicalization of an earlier phrase híppos ho potámios, literally ‘horse of the river’. Other English descendants of híppos (a relative of Latin equus ‘horse’) include hippodrome [16], from a Greek compound that meant originally ‘horse-race’ (-drome occurs also in aerodrome and dromedary), and the name Philip, literally ‘lover of horses’. The abbreviation hippo, incidentally, dates from the mid-19th century. => equine, hippodrome
hippopotamus (n.)
1560s, from Late Latin hippopotamus, from Greek hippopotamus "riverhorse" (earlier ho hippos ho potamios "the horse of the river"), from hippos "horse" (see equine) + potamos "river, rushing water" (see potamo-). Replaced Middle English ypotame (c. 1300), which is from the same source but via Old French. Glossed in Old English as s?hengest.
Ypotamos comen flyngynge. ... Grete bestes and griselich ["Kyng Alisaunder," c. 1300]
例文
1. And so what does Hippopotamus wish to close with？
カバは何を言ってこの編を終わらせようとしているのか。
2. The children enjoyed watching the hippopotamus wallowing ( about ) in the mud.
子供たちはカバが泥の中で転がるのを見るのが好きだ。
3.A hippopotamus surfs the waves off the coast of Gabon.
カバがガボンの海岸付近をサーフィンしている。
4.A huge animal，possibly hippopotamus ，described in the Old Testament.
旧約聖書に記述されている壮大な動物は、カバかもしれない。
5.The children enjoyed watching the hipopotamus wallowing in the mud.