- Original: ἔσοπτρον - Transliteration: Esoptron - Phonetic: es'-op-tron - Definition: 1. a mirror a. the mirrors of the ancients were made, not of glass, but steel - Origin: from G1519 and a presumed derivative of G3700 - TDNT entry: 2:696,27/264 - Part(s) of speech: Noun Neuter - Strong's: From G1519 and a presumed derivative of G3700 ; a mirror (for looking into): - glass. Compare G2734 . Total KJV Occurrences: 2 • glass, 2 1 Corinthians 13:12; Jam 1:23