IPA: /əˈbɛt/
KK: /əˈbɛt/
To help or support someone in doing something wrong or illegal.
He was charged with abetting the criminal in his escape.
Past: abetted
Past Participle: abetted
Abet is derived from the Old English 'ābētan', which means to incite or encourage. The prefix 'a-' is a variant of 'on' or 'in', and 'bētan' means to bait or to make better. Thus, the word 'abet' means to encourage or assist someone in doing something, often in a negative context.
Think of someone 'encouraging' or 'inciting' another to act — that's what abet means.