(IN ELVISH) For her love, I fear the grace of Arwen Evenstar will diminish.

10 seconds sound clip from the The Lord of the Rings: The Fellowship of the Ring movie soundboard.

You can hear this line at 02:50:55 in the Blu-ray version of the movie.

Quote context

[...]

- And what gift would a dwarf ask of the Elves?

- Nothing. Except to look upon the lady of the Galadhrim one last time...

- For she is more fair than all the jewels beneath the earth.

- Actually. There was one thing. No, no, I'm talking nonsense. It's quite impossible. Stupid to ask.

- I have nothing greater to give than the gift you already bear.

(IN ELVISH) For her love, I fear the grace of Arwen Evenstar will diminish.

(IN ELVISH) I would have her leave these shores, and be with her people.

(IN ELVISH) I would have her take the ship to Valinor.

- That choice is yet before her.

- You have your own choice to make, Aragorn. To rise above the height of all your fathers since the days of Elendil, or to fall into darkness with all that is left of your kin.

[...]