abettor

/əˈbɛtər/
noun
  1. A person who encourages or helps someone to commit a crime or do something wrong. (Same meaning as 'abetter'; used especially in legal contexts.)
    • The prosecutor proved that the abettor knew about the plan.
    • In law, an abettor is equally guilty as the person who commits the crime.
    • The abettor was sentenced to two years in prison.
Antonyms
What does "abettor" mean? | whatsthatwordmean | whatsthatwordmean