Sindarin 

findor

masculine name. Findor

An earlier birth name of Gil-galad, but Tolkien marked this name with a “?” indicating he was uncertain of it (WJ/56). This name may contain the element fin seen in the Sindarin names of the descendants of Q. Finwë, combined with the suffix -dor “✱king, lord”. His later birth name is given as Ereinion (S/154).

Sindarin [WJI/Gilgalad] Group: Eldamo. Published by

Noldorin 

gwindor

masculine name. Gwindor

Noldorin [LBI/Flinding; LBI/Gwindor; LRI/Gwindor; LT2/124; LT2I/Gwindor; SM/121; SM/312; SMI/Findor; SMI/Flinding; SMI/Gwindor] Group: Eldamo. Published by