Name of the black metal devised by Eöl as mentioned in The Silmarillion (S/133), apparently a combination of √GAL “shine” and morn “black”.

Conceptual Development: In Silmarillion drafts from the 1950s Tolkien first gave this name as Rodëol “metal of Eöl” (WJ/322), where the initial element seems to be a later iteration of N. rhaud “metal” from The Etymologies of the 1930s (Ety/RAUTĀ). Tolkien then considered a number of alternate names for the metal, all various forms of the name of Eöl’s son Maeglin, since at this stage he intended the son to be named after the metal (WJ/48, 322). Later Tolkien decided that “the metal must not have same name as Maeglin”, and he settled on galvorn for the metal, as discussed above.