henceforth
adverb /ˌhensˈfɔːθ/
  /ˌhensˈfɔːrθ/
(also henceforward 
 (formal) /ˌhensˈfɔːwəd/
  /ˌhensˈfɔːrwərd/
)- starting from a particular time and at all times in the future
- Friday 31 July 1925 henceforth became known as ‘Red Friday’.
 - Henceforth, all staff will need to provide proof of identity before entering the building.
 
Oxford Collocations DictionaryHenceforth is used with these verbs:- refer