Charles Ellicott Commentary 2 Kings 21:19

"Amon was twenty and two years old when he began to reign; and he reigned two years in Jerusalem: and his mother`s name was Meshullemeth the daughter of Haruz of Jotbah." — 2 Kings 21:19 (ASV)

THE REIGN OF AMON (2 Kings 21:19–26).

Amon. —The Vatican Septuagint reads Αμώς, Amos (So Josephus Άμωσός). The name is perhaps that of the Egyptian sun-god Amen (Greek Αμμών), as Amon’s father was an idolater.

Meshullemeth. —Feminine form of Meshullam, “friend” i.e. of God (Isaiah 42:19). Ewald compares the Latin Pius, Pia, as a proper name.

Jotbah. —Thenius imitates the name with Gutstadi. St. Jerome says it was in Judah. A similar name occurs in Numbers 33:33; Deuteronomy 10:7.