cot (n.1)youdaoicibaDictYouDict[cot 词源字典]
"small bed," 1630s, from Hindi khat "couch, hammock," from Sanskrit khatva, probably from a Dravidian source (compare Tamil kattil "bedstead").[cot etymology, cot origin, 英语词源]
cot (n.2)youdaoicibaDictYouDict
"hut, cottage;" see cote.