/ Dictionary / Index O Old Welsh: Meaning and Definition of Find definitions for: Old' Welsh' Pronunciation: [key] the Welsh language of the period before c1150 a.d. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Olduvai Gorge Old West Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language