decertify
1. [ verb ] cause to be no longer approved or accepted
Synonyms: derecognise derecognize
Examples:

"Carter derecognized Taiwan in 1979 after the U.S. recognized the People's Republic of China"

Related terms: license
Similar spelling:   desert
  dessert
  Deckert
  desertion
  desert_fox
  deserts
  desert_rat
  desert_lynx