dai·myo noun ordai·mio\ˈdīmēˌō, -m(ˌ)yō\ (pluraldai·myosordaimyoordai·miosordaimio) Etymology: Japanese daimyō, from Chinese (Pekingese) ta4 ming2 great name, from ta4 great + ming2 name : one of the former feudal barons of Japan who were vassals of the shogun but had extensive powers in their own baronies