/ Dictionary / Index E errantry: Meaning and Definition of Find definitions for: er•rant•ry Pronunciation: (er'un-trē), [key] — pl. -ries. conduct or performance like that of a knight-errant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. errant errare humanum est* Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language