Conceptual Development: When it first appeared in Silmarillion drafts from the 1930s, this name was N. Rathlorion “Golden-bed” (SM/134), later changed to N. Rathloriel “Bed of Gold” (LR/141). The second name appeared in The Etymologies, with essentially the same derivation as given above (Ety/RAT, LÁWAR). In Silmarillion revisions from the 1950s-60s the o was lengthened (WJ/346), and Tolkien considered changing the name to Rathmalad or Rathmallen (WJ/191, 353).
rathlórielplace name. Bed of Gold, Golden-bed