- Original: μέγεθος - Transliteration: megethos - Phonetic: meg'-eth-os - Definition: 1. greatness - Origin: from G3173 - TDNT entry: 13:04,6 - Part(s) of speech: Noun Neuter - Strong's: From G3173 ; magnitude (figuratively): - greatness. Total KJV Occurrences: 1 • greatness, 1 Eph 1:19