In autism repetitive behavior is known as repetitive behavior, there's not necessarily a specific term. You may be referring to stimming, which is a form of repetitive behavior used to self-sooth in Autistic people.

This sounds like obsessive-compulsive behavior.

Adaptive behavior is a type of behavior that is used to adapt to another type of behavior or situation. This is often characterized by a kind of behavior that allows an individual to substitute an unconstructive or disruptive behavior to something more constructive. These behaviors are most often social or personal behaviors. For example a constant repetitive action could be re-focused on something that creates or builds something. In other words the behavior can be adapted to something else.

The behavior health syndromes increases an individual's risk for addictive behavior through the repetitive behavior.

Repetitive behavior (sometiems intentionally repeted) becoming a regular behavior that after time becomes unnoticed by the subject performing the task.