retcon
v.β Β«βCrisis On Infinite Earths” solved a DC crisis all right, but it wasnβt the problem of having multiple earths. It was the problem of 50 years of continuity complicating their existing characters.… “Crisis” let DC have good reason to retcon characters to whatever extent neededβheck, it practically demanded it.Β» ββRe: Infinite Earths” by Steve Simmons Usenet: rec.arts.comics Dec. 22, 1989. (source: Double-Tongued Dictionary)