/ Dictionary / Index D Dafydd ap Gwilym: Meaning and Definition of Find definitions for: Da•fydd ap Gwi•lym Pronunciation: (dä'vi äp gwi'lim), [key] c1340–c1400, Welsh poet. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. daft dag Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language