reneg

Verb

renege (third-person singular simple present reneges, present participle reneging, simple past and past participle reneged)

1. (intransitive) To break a promise or commitment; to go back on one's word.
   • Previously I promised not to proselytize miserism, but now I want to renege a little on that promise. If your family income is anywhere near average, you can scrimp and save and cut back for maybe two to four years […]2010, Dolly Freed, Possum Living, page 149

   Antonyms:

   deliver

2. (intransitive) To break one's commitment to follow suit when capable.
3. (archaic, transitive) To deny; to renounce
   • His captaines heart, / Which in the ſcuffles of great fights hath burſt / The Buckles on his breaſt, reneages all temper, / And is become the bellowes and the Fan / To coole a Gypſies Luſt.c. 1606–1607 (date written), William Shakespeare, “The Tragedie of Anthonie and Cleopatra”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard...