The Hebrew name Adoniram (H141) means "my lord is exalted" or "my lord of heights," combining adon (lord) and rum (to be high/exalted). He served as David's and Solomon's official in charge of forced labor (2 Samuel 20:24; 1 Kings 4:6) and was later stoned by the northern tribes when Rehoboam sent him to suppress the rebellion (1 Kings 12:18).
His death by stoning marked the definitive rupture of the united kingdom — he was the first casualty of the divided monarchy.
Adoniram's career spans the golden age and the fracture of the Davidic kingdom. His role overseeing forced labor (the mas) was deeply unpopular — Solomon's use of conscripted Israelite labor for his building projects planted seeds of resentment that blossomed into rebellion under Rehoboam.
His violent death at the hands of northern Israelites (1 Kings 12:18) became the point of no return — after this, "all Israel has been in rebellion against the house of David to this day" (1 Kings 12:19). The man whose name proclaimed a "lord exalted" died as a symbol of how earthly exaltation through coercion leads to ruin.