Arthedain claims lordship over all Arnor (estimated date)
Event Type: Political
Age: 3rd Age - The Kings
An event in the prelude to the Battle between Arthedain and Rhudaur; see that entry for an overview.
After Malvegil, the Kings at Fornost again claimed lordship over the whole of Arnor, and took names with the prefix ar(a) in token of this.
The Return of the King, LoTR Appendix A, Annals of the Kings and Rulers: The Realms in Exile, Footnote
In the days of Argeleb son of Malvegil, since no descendants of Isildur remained in the other kingdoms, the kings of Arthedain again claimed the lordship of all Arnor. The claim was resisted by Rhudaur. There the Dúnedain were few, and power had been seized by an evil lord of the Hill-men, who was in secret league with Angmar. Argeleb therefore fortified the Weather Hills....
The Return of the King, LoTR Appendix A, Annals of the Kings and Rulers: Eriador, Arnor, and the Heirs of Isildur: The North-kingdom and the Dúnedain
In token of this claim all the kings of Arthedain, and the chieftains after them, take names with the prefix aran, ar(a) signifying 'high king'.Etymology
The Peoples of Middle-Earth, HoME Vol 12, Part 1, Ch 7, The Heirs of Elendil: The Northern Line of Arnor: The Isildurioni
ar(a)- 'high, noble, royal' appears in a great many names, as Aradan, Aredhel, Argonath, Arnor, etc.; extended stem arat- appearing in Aratar, and in arato 'champion, eminent man', e.g. Angrod from Angaráto and Finrod from Findaráto; also aran 'king' in Aranrúth. Ereinion 'scion of kings' (name of Gil-galad) has the plural of aran; cf. Fornost Erain 'Norbury of the Kings' in Arnor. The prefix Ar- of the Adûnaic names of the Kings of Númenor was derived from this.Notes
The Silmarillion, Appendix: Elements in Quenya and Sindarin Names
The year is an estimate, set to closely follow the accession of Argeleb I.
changed date & added quotes: Elena Tiriel 10Jul06