(n.) A breaking out anew of a sore or problem; as, a recrudescence of racism\.

amendment atavism backset backward deviation change of allegiance change of heart change of mind falling back improvement lapse new birth palingenesis palingenesy reanimation rebirth reclamation recurrence redemption reform reformation refreshment regeneracy regenerateness regeneration regenesis regression rejuvenation rejuvenescence relapse renaissance renascence renewal resurgence resurrection resuscitation return reversal reverse reversion revival revivescence revivescency revivification second wind second youth setback throwback