1540s, "deny, renounce, abandon," from Medieval Latin renegare, from Latin re-, here probably an intensive prefix, + negare "deny" (see deny). Meaning "change one's mind" is from 1784. Related: Reneged; reneging.
实用例句
1. You said you'd come, why did you renege on your promise?
你说你要来的, 为什么要背信弃义?
来自互联网
2. Any more colourful candidate could renege on a deal.