expenditure (n.)youdaoicibaDictYouDict[expenditure 词源字典]
1769, "act of expending," from Medieval Latin expenditus, irregular past participle of Latin expendere "to weigh out; to pay out" (see expend) + -ure. Meaning "that which is expended" is from 1791. Related: Expenditures.[expenditure etymology, expenditure origin, 英语词源]