A Sindarin name for Q. Laurelin (S/126) translated “Hanging Flame” (LR/210). It is a combination of the verb [N.] gling- “to hang” and the root √KAL (Ety/LING, KAL).
Conceptual Development: In the earliest Lost Tales this name appeared as G. Glingol “Singing Gold”, a more direct equivalent of ᴱQ. Laurelin (LT2/216). The form N. Glingal appeared in late changes to the Lays of Beleriand from the 1920s (LB/80), and Tolkien revised its derivation and translation to the ones given above in The Etymologies from the 1930s (Ety/LING, KAL).
linga- vb. "hang, dangle" (LING/GLING, VT45:15, 27)