A more thorough explanation:

Definition: A feasor is a person who commits an act. This term is often used in legal contexts.

For example, if someone causes harm to another person or their property, they may be considered a feasor. In this case, the feasor is responsible for the damages they caused.

The term "tortfeasor" is also commonly used in legal contexts. This refers specifically to someone who commits a tort, which is a civil wrong that causes harm to another person or their property.

Overall, the term "feasor" is used to describe someone who is responsible for an action or its consequences.