The words Menw and Menwyd, which are here used as proper names, signify the source of intellect and happiness, the mind, or the soul, being derived from men, an active principle, There are several words growing out of the same root, such as, menwad, menwawl, menwedig, menwi, menwin, menwydaidd, menwydaw, menwydawg, menwydawl, menwydedd, menwydiad, menwydig, menwydus, menwydusaw, menwyn, through all of which the original idea of intellect and bliss runs. "Tri menwedigion teyrnedd," the three beneficent sovereigns; " tri menwydagion Duw," the three blessed ones of God.