renege

US /rɪˈneɡ/
UK /rɪˈneɡ/
"renege" picture
1.

約束を破る, 撤回する

go back on a promise, undertaking, or contract

:
He reneged on his promise to pay back the loan.
彼は借金を返済するという約束を破った
The company reneged on the agreement at the last minute.
会社は土壇場で合意を破棄した