I'm having a bit of trouble here.... How would one translate "song of the wind"? I originally translated it to Glindengwae (literally glind, song; en, of the; and gwae, wind). Could it also be translated to "wind song"? That would be Gwaiglind, correct? I'm still new to Sindarin and adjective mutations are a bit tricky.
So, names are not composed of prepositions or phrases. You can have Lin(n)·eñ·Gwae, Lin(n)·i·‘wae (Song of the Wind).
Prepositions cause mutations en (nasal) and article i (soft). Also note that lind would typically reduce to lin [lind] > [linn] > [lin]. Because the final [ll], [nn], [ss] shortened in polysyllables.
For a name like Wind Song it would be Gwaelin or reversed Linwae
Glind is an older word which is now lind.
Hope that helps.
Ah, thank you! I didn't catch "glind " being an old translation. This helps a lot! Once again, thank you, mellon!!
Glind is not an older word, but rather a alternate variant to lind; it is attested at least as late as 1959-60, which is squarely within the later conceptual period. I see no issue with using either lind or glind, especially in names (though note that medially, due to consonant mutations, there would not likely be any difference between them at all).
"Song of the wind" can be rendered as a name either as Gwaelin(n) or Sullin(n), both literally "wind-song". Note that in both cases you can choose to spell them either with a final -n or -nn, up to you. Technically a more archaic -nd would also be permissibile.
That's my fault Eldamo redirects you to see lind so I assumed it was an older or no longer used word.