POWERFUL a. 2 definitions
le of producing great effects of any kind; potent; mighty; efficacious; intense; as, a powerful man or beast; a powerful engine; a powerful argument; a powerful light; a powerful vessel. The powerful grace that lies In herbs, plants, stones, and their true qualities. Shak.
SERF n.
the customs of France and Germany, persons in this abject state seem to have been called serfs, and distinguished from villeins, who were only bound to fixed payments and duties in respect of their lord, though, as it seems, without any legal redress if injured by him. Hallam.