/ Dictionary / Index O Old Persian: Meaning and Definition of Find definitions for: Old' Per'sian Pronunciation: [key] an ancient West Iranian language attested by cuneiform inscriptions. Abbr.: OPers Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Old Permic Old Pretender Related Content Daily Word Quiz: illegible Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language