The story
- Ancient Greek · derived fromεἴσ-οπτρον
- English todaypolyoptrum
From poly- + -optrum (compare Ancient Greek εἴσ-οπτρον (eís-optron), ἔσ-οπτρον (és-optron, “mirror”)).
Etymology from Wiktionary, CC BY-SA 4.0.
polyoptrum
Today it means: An old kind of kaleidoscope Full definition →
Ancient Greek εἴσ-οπτρον