G2072–ἔσοπτρον–esoptron

For now we see things in a glass, darkly; but then face to face: now my knowledge is in part; then it will be complete, even as God's knowledge of me.

ἐσόπτρου esoptrou “a glass”

Because if any man is a hearer of the word and not a doer, he is like a man looking at his natural face in a glass;

ἐσόπτρῳ· esoptrō “a mirror;”