ᴱN. dai n. and adj. “sky; high” (Category: Sky, Heavens)
A noun for “the sky” appearing in the Gnomish Lexicon of the 1910s (GL/29), likely derived from the root ᴱ√TAHA [DAHA] as suggested to Christopher Tolkien (LT1A/Telimektar; QL/87). ᴱN. dai “sky” appeared again in Early Noldorin Word-lists of the 1920s (PE13/141), but in marginal notes to the Lays of Beleriand of the 1920s it was glossed “high” (LB/49 note on line #946). Its most notable use was in the name Dor-na-Dhaideloth “[Land of] the Heaven Roof” (LT2/287), but in later writings this name became Dor Daedeloth, with an initial element of N. dae “shadow” >> S. daer “great”.
References ✧ LB/49; PE13/141
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G. dai¹ n. “sky” (Category: Sky, Heavens)
References ✧ GL/29; LT1A/Telimektar; PE13/112
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Phonetic Developments
| ᴱ√TAHA > dai | [daxa] > [dax] > [dai] | ✧ LT1A/Telimektar |