Strong's #1909: Hadad`ezer (pronounced had-ad-eh'-zer)
from 1908 and 5828; Hadad (is his) help; Hadadezer, a Syrian king:--Hadadezer. Compare 1928.
Brown-Driver-Briggs Hebrew Lexicon:
hădad‛ezer
Hadadezer = "Hadad is help"
1) son of Rehob, a king of Syria-Zobah defeated by David' s army
Part of Speech: noun proper masculine
Relation: from H1908 and H5828
Usage:
This word is used 9 times:
2 Samuel 8:3: "David smote also Hadadezer, the son of Rehob, king of Zobah,"
2 Samuel 8:5: "of Damascus came Hadadezer king of Zobah, David slew"
2 Samuel 8:7: "were on the servants of Hadadezer, and brought them to Jerusalem."
2 Samuel 8:8: "And from Betah, and from Berothai, cities of Hadadezer, king David"
2 Samuel 8:9: "all the host of Hadadezer,"
2 Samuel 8:10: "to salute him, and to bless him, because he had fought against Hadadezer, and smitten him: for"
2 Samuel 8:10: "him, because he had fought against Hadadezer, and smitten him: for Hadadezer had wars"
2 Samuel 8:12: "and of the children and of the Philistines, and of Amalek, and of the spoil"
1 Kings 11:23: "fled from his lord Hadadezer king of Zobah:"