The Geste of Beren and Lúthien

Songs have recalled the Elves have sung
in old forgotten elven tongue
how Lúthien and Beren strayed
by the banks of Sirion. Many a glade
they filled with joy, and there their feet
passed by lightly, and days were sweet.
Though winter hunted through the wood,
still flowers lingered where she stood.
Tinúviel! Tinúviel!
the birds are unafraid to dwell
and sing beneath the peaks of snow
where Beren and where Lúthien go.

J.R.R. Tolkien (lines 2,856 - 2,867)