topon. Hidden Rock, (originally) Singing Stone

The hidden city of the Noldor in Beleriand, translated “Hidden Rock”, an adaptation of its Quenya name Ondolindë “Rock of the Music of Water” (S/125). Tolkien stated that the name Gondolin was properly “neither Sindarin or Noldorin [Quenya]” (PE17/29), but the Sindarized name was reinterpretated as a combination of gond “stone” and dolen “hidden” (WJ/201).
Conceptual Development: The name G. Gondolin appeared in the earliest Lost Tales, but at this stage it was translated “Stone of Song” (LT2/158). This was the same meaning as its early Qenya name Ondolinda, with the second element being G. dólin “song” (GL/29, 41; LT1A/Gondolin). In the Etymologies from the 1930s, Tolkien revised the meaning of N. Gondolin to “heart of hidden rock” (Ety/DUL), setting the stage for the later derivation described above.

[LotR/1115.1903, LotRI/Gondolin.001, MR/373.2711, MRI/Gondolin.001, PE17/029.1301, PE17/133.3016, PM/374.1808, PMI/Gondolin.001, S/125.2712, SA/gond.004, SA/gond.045, SI/Gondolin.001, UTI/Gondolin.001, WJ/201.0608, WJI/Gondolin.001, WJI/Ondolindë.011] Group: Eldamo. Published by

Black Speech, Nandorin, Noldorin, Quendya, Quenya, Sindarin, Telerin are languages conceived by Tolkien and they do not belong to us; we neither can nor do claim affiliation with Middle-earth Enterprises nor Tolkien Estate.