telluma

noun "dome, copula", especially the "Dome of Varda" over Valinor, but also applied to the domes of the mansion of Manwë and Varda upon Taniquetil. Adopted from Valarin delgūmāunder the influence of pure Quenya telumë WJ:399, 411. Pl. tellumar is attested Nam, RGEO:66.