Bundetta
Bundetta is an unofficial metric prefix that the guy who came up with ronna and quetta said he has ready. The only use for this is for referring to the highest order minx puzzle (the 21x21 "bundettaminx") which doesn't even call itself that because its creator didn't give it a mouth[1]. Minx puzzles scale much slower than metric prefixes, so if anyone makes a higher order minx puzzle we'll be out of luck for naming it.
