jumble (v.)youdaoicibaDictYouDict[jumble 词源字典]
1520s, originally "to move confusedly," perhaps coined on model of stumble, tumble, etc. In 17c., it was yet another euphemism for "have sex with" (a sense first attested 1580s). Meaning "mix or confuse" is from 1540s. Related: Jumbled; jumbling.[jumble etymology, jumble origin, 英语词源]
jumble (n.)youdaoicibaDictYouDict
"a confused mixture," 1660s, from jumble (v.).