/ Dictionary / Index P petit treason: Meaning and Definition of Find definitions for: pet'it trea'son Pronunciation: (pet'ē), [key] — Eng. Law. Eng. Law. the killing of a husband by his wife, of a lord by his servant, or of an ecclesiastic by a subordinate ecclesiastic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. petits pois* PETN Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language