formerly       
adverb  formal uk/ˈfɔː.mə.li/ us/ˈfɔːr.mɚ.li/
B2 以前,从前,在过去
in the past
  The European Union was formerly called the European Community. 欧盟旧称欧洲共同体。 
 Synonyms: once previously
 - More examples
 - The position of our formerly illegal workers has now been regularized.
 - The artist formerly known as Prince.
 - The building was formerly used as a bank, but is now being turned into a bar.
 - The house was formerly owned by the local council.
 - Many formerly radical students now work for the government.