Psalm 68/Notes/Grammar.v. 12.150750

Is אדני a proper name? Elitzur (2015) that אדני in this psalm should be considered a proper name. By his estimation, the form went from a submissive address to a proper name in the 8th century, the date to which he dates this psalm: "Mention is made of the Temple of the Lord in Jerusalem (v. 30), thus apparently teaching that the psalm postdates David; and of the princes of Zebulun and Naphtali (v. 28), showing that it most likely predates the exile of the northern tribes during the reign of Tiglath-pileser III (732 BCE)."