retract
re-tract
verb
To withdraw a statement, promise, or accusation as untrue or unjustified.
"The newspaper had to retract the false story."
verb
To pull something back or in, especially a part of the body or a mechanism.
"The cat can retract its sharp claws."
Thesaurus
Synonyms: draw in, shrink back, draw back, pull back, recant, forswear, abjure, resile