On a completely historical, FYI note: renege has been found in the written record since the 1500s, where it originally meant “renounce” or “abandon” It's rooted in the Latin negare, “to deny,” related to the word negative. ... It isn't, but that hasn't stopped racist applications of the word.

What does renege mean in slang?

To renege is to go back on your word or fail to keep a promise. Not quite lying, reneging is more a sin of omission — failing to do what you said you would. The Latin negāre means "to deny," so by reneging on your word, you are denying someone whatever you promised them.

What is a welcher?

Definitions of welcher. someone who swindles you by not repaying a debt or wager. synonyms: welsher. type of: chiseler, chiseller, defrauder, gouger, grifter, scammer, swindler. a person who swindles you by means of deception or fraud.