Also, withdrawment. the act or condition of withdrawing.

Pharmacology . the act or process of ceasing to use an addictive drug.

coitus interruptus.

noun

remainder , stay

noun

abandonment , abdication , abjuration , alienation , departure , disavowal , disclaimer , disengagement , egress , egression , exit , exiting , exodus , extraction , marooning , palinode , recall , recantation , relinquishment , repudiation , rescission , resignation , retirement , retreat , revocation , revulsion , secession , going , fallback , pullback , pullout , retractation , cancellation , evacuation , retraction