Ereinion

noun. scion of kings (Gil-galad)

erein (AS pl. of aran “king”) + iôn (“son”)

ereinion

masculine name. Scion of Kings

Birth name of Gil-galad (S/154), translated “Scion of Kings” (PM/347). This name is a combination of the plural of aran “king” and the patronymic suffix -ion “son” (SA/ar(a)).

Conceptual Development: In Silmarillion revisions from the 1950s-60s, his birth name is first given as Findor, though Tolkien’s writing is difficult to read and the exact form is unclear (WJ/56).

Elements

Word	Gloss
aran	“king, lord, chief, (lit.) high or noble person, king, lord, chief, (lit.) high or noble person; [N.] lord (of a specific region)”
-ion	“-son”