no-account (adj.)youdaoicibaDictYouDict[no-account 词源字典]
"worthless," 1845, American English, literally "of no account" (see account (n.)). The phrase of non acompte "of no value or importance" is from late 14c. Contracted form no'count is attested from 1853.[no-account etymology, no-account origin, 英语词源]