/ Dictionary / Index F felly: Meaning and Definition of Find definitions for: fel•ly Pronunciation: (fel'ē), [key] — pl. -lies. felloe. fel•ly Pronunciation: (fel'ē), [key] — adv. in a fell manner; fiercely; ruthlessly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: felly (Thesaurus) fellow traveler felo-de-se Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language