The word sounded right, but there was no force behind it, nothing that made the wolf do more than quirk a figurative brow at his old friend.
"You had the inflection, but..." Remus shook his head, but his smile was encouraging. "You have to say it like you really mean it. We're friends, and you know Moony very well. But you need to think of him as being like a wild dragon, not a familiar pup like your Starless. Say it as though you were ordering the wolf away from something that would be dangerous, and you know he isn't going to want to obey."