gilith

noun. starlight, *region of the stars

A word in The Etymologies of the 1930s glossed “starlight” under the root ᴹ√GIL “shine (white or pale)” with variant forms Gilith and {?Gilwen >>} Gilfen (Ety/GIL; EtyAC/GIL). Elsewhere in The Etymologies, Tolkien compared gilith to N. gwilith “air as a region” and equated it to ᴹQ. Ilmen (Ety/WIL), so it seems Tolkien also intended it to mean “region of the stars”, though Gilfen is more likely as the direct cognate of ᴹQ. Ilmen.

gilith

noun. region above air where stars are

cf. Q ilmen

gil-galad

masculine name. Starlight

gilgalad

noun. starlight