Belthil was the silver-flowered tree made by Turgon in memory of Telperion, one of the Two Trees of Valinor. Its mate was Glingal.
Belthil translates to Divine Radiance, from BAL = powers, THIL = shine with white or silver light. The original a became e due to I-affection
 Other versions
Earlier writings name this tree Bansil, but this progressed to Banthil, and finally Belthil.
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Lost Road and Other Writings, "Part Three: The Etymologies"
- ↑ J.R.R. Tolkien, Christopher Tolkien (ed.), The Book of Lost Tales Part Two, "The Fall of Gondolin": "Notes and Commentary", Entries in the Name-list to The Fall of Gondolin, Bansil, p. 214