Whats the meaning of aiding and a betting?

From Findlaw.com

A criminal charge of aiding and abetting or accessory can usually be brought against anyone who helps in the commission of a crime, though legal distinctions vary by state. A person charged with aiding and abetting or accessory is usually not present when the crime itself is committed, but he or she has knowledge of the crime before or after the fact, and may assist in its commission through advice, actions, or financial support. Depending on the degree of involvement, the offender's participation in the crime may rise to the level of conspiracy. Source(s): Findlaw.com

Aiding and abetting is a legal term for helping someone.
It's AIDING AND ABEDDING. It means to help a criminal by hiding him and giving him a place to live. Or protecting him from being arrested.
helping somebody commit a crime. this can be defined in many ways. if you conceal a criminal, if you actually help in the criminal activity or you just know about it and do not inform the authorities.
Giving assistance or help to someone committing or who has commited a crime.
Maybe your question is: What's the meaning of aiding and abetting? Not a betting.

If it's the case, aiding is helping o assisting and abetting is encouraging. It's in the dictionary.