debit (n.)youdaoicibaDictYouDict[debit 词源字典]
mid-15c., from Middle French debet or directly from Latin debitum "thing owed, that which is owing," neuter past participle of debere "to owe" (see debt). As a verb from 1680s. Debit card is attested from 1975.[debit etymology, debit origin, 英语词源]