/ Dictionary / Index C custos: Meaning and Definition of Find definitions for: cus•tos Pronunciation: (kus'tos Lat. k&oobreves'tōs), [key] — pl. cus•to•des (italics)a custodian. a superior in the Franciscan order. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. custom-tailor custos morum* Related Content Daily Word Quiz: drowsy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language