Shepardize
To check a citation against later case history to confirm it is still good law.
To "Shepardize" a case is to look up its later citation history to determine whether the case has been overruled, distinguished, criticized, or affirmed by later courts. The term comes from Shepard's Citations, LexisNexis's citation service.
The Westlaw equivalent is KeyCite. The free public equivalent is checking the case in CourtListener and reading the citing-references list. Every legal brief should Shepardize every cited authority before filing.