A word in the Qenya Lexicon of the 1910s glossed “iron or steel” (QL/36), equated ᴱQ. yeren which was elsewhere glossed “pig iron” (QL/105). ᴱQ. ĕrĕ(n) was also mentioned (along with yĕrĕ(n)) in the contemporaneous Gnomish Lexicon in the entry for G. ger “ore, metal” (GL/38). Its most notable use in the 1910s was as an element in ᴱQ. Eremandu or Erimandu “Hells of Iron” (PE15/20), a variant of ᴱQ. Angamandi (LT1/77). Since Tolkien only used the latter form in the narratives, it is likely Tolkien abandoned eren early on.
Early Quenya
ere-
prefix. out
ere-
verb. to go
ere(n)
noun. iron, steel
tie-
verb. to go
A deleted verb in Early Qenya Word-lists of the 1920s with present form ere “goes” and past tense erne “went”, perhaps based on the early root ᴱ√ERE [EÐE] “out” as suggested by the editors (PE16/133).