Let's get this all straightened out -
Aragorn: Go on, Bill, go on. Don’t worry Sam, he knows the way home.
{Aragorn grabs Pippin's arm from throwing the rock}
Aragorn: Do not disturb the water.
Gandalf: Oh, it’s useless!
Frodo: It’s a riddle. Speak “friend” and enter. What’s the Elvish word for friend?
Go on. 🙂