The Oxford Thesaurus An A-Z Dictionary of Synonyms - abetv.

1) encourage, urge, instigate, incite, provoke, egg on, prod, goad; aid, help, assist: The jury found that his wife had abetted him in the murder. 2) countenance, approve (of) , support, endorse, second, sanction, condone; further, advance, promote, uphold: By failing to inform on the terrorists, the neighbours abetted the bombing.