Something that you know, but isn't necessarily useful in most situations. Where knowledge usually implies wisdom, knowage just implies you spent too much time on stuff.
If you can name all the discarded side characters in Dragon Ball, then that's some serious knowage!
Sandrian is the best priest ever! He is Strong, smart, funny, badass and honorable. He may have a little crush on a witch... But that's not important, because he Will be one of the two next barons of Svarkstad, meybe the next Ragil-pope, he is a friend of the arch-druids, paladin is Eron Evigflamme and by the way, he is one of the Kings og Roul-assin. Do Yeah, HE IS PROBABLY COOLER THAN YOUR PRIEST!