The story
- Ancient Greek · derived fromφακός“lentil, lenticular body”
- English todayphaco-
From Ancient Greek φακός (phakós, “lentil, lenticular body”). For the sense change, compare Medieval Latin lēns (“lens”), from Latin lēns (“lentil”).
Words from the same roots
Ancient Greekφακός all →
phacoid
Etymology from Wiktionary, CC BY-SA 4.0.