/ Dictionary / Index A ab aeterno*: Meaning and Definition of Find definitions for: ab ae•ter•no Pronunciation: (äb' ī-ter'nō Eng. ab' ē-tûr'nō), [key] — Latin. Latin. from the most remote antiquity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Abaddon abaft Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language