ABETTOR, crim. law. One who encourages or incites, persuades or sets another on to commit a crime . Such a person is either a principal or, an accessory to the crime. When present, aiding, where a felony is committed, he is guilty as principal in the second degree ; when absent, "he is merelyan accessory. 1. Russell, 21; 1 Leach 66; Foster 428.