ἔσοπτρον G2072
ésoptron · es'-op-tron · Noun Neuter
from εἰς and a presumed derivative of ὀπτάνομαι; a mirror (for looking into):--glass. Compare κατοπτρίζομαι.
2 Occurrences in the King James Bible
1 Corinthians 13:12For now we see through a glass, darkly; but then face to face: now I know in part; but then shall I know even as also I am known.
James 1:23For if any be a hearer of the word, and not a doer, he is like unto a man beholding his natural face in a glass: