After the passing of the Plague, little of note is recorded in the remaining thirty-four years of Argeleb's Kingship. He died in the year III 1670, and was succeeded by his son Arvegil.
The date of Argeleb's birth appears only in The History of Middle-earth volume XII, The Peoples of Middle-earth. It cannot therefore be considered completely reliable.
The ar- element of Argeleb's name means 'lord' or 'king', following the tradition established by his great-grandfather and namesake, Argeleb I, who claimed lordship over the neighbouring lands of Cardolan and Rhudaur. The meaning of -geleb is less sure, but it seems to be related to the word celeb, 'silver', that appears in many Elf-names.