Treebeard

"(...) For I am not going to tell you my name, not yet at any rate" A queer half-knowing, half-humorous look came with a green flicker into his eyes. "For one thing it would take a long while: my name is growing all the time, and I've lived a very long, long time; so my name is like a story. Real names tell you the story of the things they belong to in my language, in the Old Entish as you might say. It is a lovely language, but it takes a very long time to say anything in it, because we do not say anything in it, unless it is worth taking a long time to say, and to listen to."

Treebeard
Treebeard - The Two Towers
The Lord of the Rings
JRR Tolkien