Privily - See the margin. The word is probably the name of a place in “Tormah”, some think the same as “Arumah” Judges 9:41. Zebul was faithful to Abimelech, but dissembled his sentiments, from being too weak to oppose Gaal, until Abimelech came with his army Judges 9:38.
Related Commentaries of Judges 9:31
Judges 9:31
31 And he sent messengers unto Abimelech privily,j saying, Behold, Gaal the son of Ebed and his brethren be come to Shechem; and, behold, they fortify the city against thee.