Decalogue
the Ten Commandments given by God to Moses on Mount Sinai. They were first introduced into the liturgy of the Church of England, in the prayerbook of Edward VI., in 1552.
DECAMERON (de-kam'e-ron), anything of 10 days' occurrence; also the title given to a collection of tales by Boccaccio, written in 10 parts, each part containing 10 stories, and being supposed to occupy one day in the narration. Boccaccio represents the stories as being told by seven ladies and three gentlemen, who had fled from Florence into the country to escape the fearful plague of 1348, and who had no other means of passing the time.