English Alternative forms gwestfa Noun gwestva (plural gwestvas) (historical) An entertainment duty levied by the king of a gwlad twice a year upon his free men, payable in food or silver. Middle Welsh Noun gwestva (law) gwestva Descendants Welsh: gwestfa (“guesthouse, historical king's food-rent”) References A. Wade-Evans. Welsh Medieval Law.Wikiwand - on Seamless Wikipedia browsing. On steroids.