ilwë noun "sky, heavens" (LT1:255), "the middle air among the stars" (LT1:273). VT49:51, 53 also mentions an obscure prononominal element ilwë.
Quenya
Taimë
the sky
ilwë
sky, heavens
hellë
sky
hellë noun "sky" (3EL; a distinct word hellë "frost" was struck out, see KHEL.)
Taimë, Taimië noun "the sky" (LT1:268; rather menel in LotR-style Quenya)