AID

ad (chazaq, "to strengthen," "to aid"): A military term used only once in Old Testament in the King James Version (Judges 9:24) and displaced in the Revised Version (British and American) by the literal rendering, "who strengthened his hands." The men of Shechem supported Abimelech in his fratricidal crime, with money, enabling him to hire men to murder his brethren. The fundamental idea in the word, as used in the Old Testament, is "abounding strength."

From the International Standard Bible Encyclopedia
Edited by James Orr, published in 1939 by Wm. B. Eerdmans Publishing Co.