The story
- Proto-Indo-European*h₃ekʷ-
- Ancient Greekὄπωπᾰ (ópōpă)
- Ancient Greekὀπτός (optós)
- Englishopto-
- Ancient Greekἤλεκτρον (ḗlektron)
- Latinēlectrum
- New Latinēlectricus
- Englishelectric
- Proto-Indo-European*h₁ey-
- Proto-Indo-European*h₁éyti
- Proto-Hellenic*éimi
- Ancient Greekἰόν (ión)
- Englishion
- Englishelectron
- Englishelectronics
- English todayoptoelectronics
From opto- + electronics.
Etymology from Wiktionary, CC BY-SA 4.0.