expense
1.
2.
3.
4. Something requiring the expenditure of money: Redecorating the house will be a considerable expense.
5. Archaic. The act of expending.
verb
expensed
at (one's) expense
To (one's) detriment or chagrin: telling jokes at my expense.
[Middle English, from Anglo-Norman, from Latin (pecunia) expēnsa, (money) paid out from feminine past participle of expendere, to pay out. See