royal valor; aran (“king”) + gorn (“valor”) #The translation is given in PM, but it could just as well be more complicated and include or allude to other stems; several names [in the line of Arthedain] though S in form, are not readily interpretable.
Aragornnoun. Tolkien proposed that the ending gorn was simply modeled on names such as Arathorn
prop. n. Tolkien proposed that the ending gorn was simply modeled on names such as Arathorn, Celegorn, and that the [?pure] Sindarin form of this name was Argorn. . This gloss was rejected.
aragornmasculine name. Revered King, Kingly Valour
The hero of the War of the Ring and first king of the reunited Arnor and Gondor.
Possible Etymology: Tolkien consider several etymologies of this name. Its initial element was clearly ar(a)- “noble” (Let/426). Tolkien variously indicated that the meaning of the second element was either S. gorn “revered" (PE17/31, 113) or “valour” (PM/xii), so that his name meant either “Revered King” or “Kingly Valour”. Of the two, the etymological discussion for the meaning “Revered King” is more complete, giving the older form †Arangorn (PE17/113).
In another place Tolkien gave the Quenya equivalent of this name as Q. Aracorno (PE17/71), but does not seem to match either of the etymologies dissussed above, so this perhaps represents a third conception of the origin of the name.
Conceptual Development: In Lord of the Rings drafts from the 1940s, this character was initially a hobbit by the name of “Trotter” (RS/138). Tolkien eventually changed the character into a man, at which point the name N. Aragorn was given to the character (TI/6-7). Before the character became a man he briefly had the Elvish names N. Rimbedir >> Padathir (RS/198), Du-finnion (RS/361) and Ethelion (RS/395).
prop. n. 'Revered King'. >> Aragorn