Second one was found right before a dragon master fight in some weird named dungeon one of the dudes that drops a mask, sorry not much help but if it's any consolation it sucks, haven't noticed anything different from the one you learn from the graybeards
Just because someone is better then you at a game doesn't mean that you "have a life" and they don't. It just means you are terrible at games. U MAD?
third word is a big improvement.. i actually found one of them on a dragon wall first, then the greybeards taught me the second word. third was on a wall. you go like 30 feet with all three. great for flying across rivers instead of having to swim, or going across a gorge.