/ Dictionary / Index J Jagello: Meaning and Definition of Find definitions for: Ja•gel•lo Pronunciation: (yä-gel'ō), [key] — pl. -los. a member of a dynasty ruling in Bohemia, Hungary, Lithuania, and Poland in the 14th to 16th centuries. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Jagatai jager Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language