Noldorin
menel
noun. *the heavens
a
conjunction. and
ar
conjunction. and
ell
noun. sky
gildin
noun. silver spark
tint
noun. spark
tint
noun. spark
tinw
noun. spark, small star
menel
noun. *the heavens
a
conjunction. and
ar
conjunction. and
ell
noun. sky
gildin
noun. silver spark
tint
noun. spark
tint
noun. spark
tinw
noun. spark, small star
An element meaning “sky” in several names from The Etymologies of the 1930s: N. Elfaron “Sky-hunter” (Ety/SPAR) and N. Elthoron “Eagle of the Sky” (Ety/THOR). It was derived from the root ᴹ√ƷEL “sky” which had an Old Noldorin form: ON. elle (Ety/ƷEL). However, Tolkien said “In Noldorin and Telerin this is confused with EL star”, implying that the word was not used in modern language; an earlier but rejected version of this entry had archaic N. †ell, el “sky” (EtyAC/ƷEL).
Neo-Sindarin: Despite the above statements, ell is probably the best attested option for “sky” in Neo-Sindarin, and I would use it as such, since it is in fact distinct from S. êl “star”, a word that is itself archaic/poetic versus more common S. gil.