Sindarin 

gwingil

noun. mermaid, (lit.) foam maiden

Cognates

  • Q. vingil “*nymph, mermaid, foam-maid, [ᴹQ.] nymph, mermaid, foam-maid”

Elements

WordGloss
gwing“foam, spindrift, foam, spindrift, [N.] flying spray; [G.] wave-crest”