Wight's Chant

From the One Wiki to Rule Them All, the Lord of the Rings Encyclopedia.

The Wight's Chant is an incantation used by the Barrow-wight when Frodo Baggins, Meriadoc Brandybuck, Peregrin Took, and Sam Gamgee are trapped in its barrow. When Frodo first hears it, it's a song of horrible sounds and cold words that chill him to the bones.
In The Two Towers (film), Gollum chants something similiar to this in the Dead Marshes as Frodo's talking to him, just before Frodo refers to him as Sméagol.

Cold be hand and heart and bone,

and cold be sleep under stone:

never more to wake on stony bed,

never, till the Sun fails and the Moon is dead.

In the black wind the stars shall die,

and still on gold here let them lie,

till the dark lord lifts his hand

over dead sea and withered land.