abettor

/əˈbɛtər/

NOUN

1. A person who assists or encourages wrongdoing

A person who knowingly helps, encourages, or supports another person in committing a crime, offense, or wrongful act.

Someone who provides assistance, encouragement, or support to another person in the commission of a criminal act.

The police arrested the abettor who had helped the criminals plan the robbery.
The court found him guilty of acting as an abettor in the fraud scheme.
An abettor may be held legally responsible for assisting a criminal act.

Someone who urges, influences, or encourages another person to engage in harmful, dishonest, or improper behavior.

The investigation identified him as an abettor who had encouraged the group to commit acts of violence.

NOUN

A person who provides help, backing, cooperation, or encouragement to another person, group, or cause.

Someone who stands behind another person or helps them achieve a goal through practical assistance, cooperation, or encouragement.

The project succeeded with the help of several dedicated abettors.
She was an important abettor of the community initiative, providing resources and encouragement.