Dymborthi, v. to be mutually aiding; to support one’s self
Dymchwelyd, v. to overturn
Dymchweliad, n. subversion
Dymchweldir, the earth-board of a plough
Dymchwydd, n. a swelling
Dymdanu, v. to spread
Dymddadlu, to dispute together
Dymddenu, v. to allure
Dymddwyn, v. to bear
Dymestyn, v. to extend