renege

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

go back on a promise, undertaking, or contract

:
•
He reneged on his promise to pay back the loan.
•
The company reneged on the agreement at the last minute.
:
defaultwelshgo back onbreak one's wordback out of