The story
- Ancient Greekνᾶνος (nânos)
- Latinnānus
- Englishnano-
- Proto-Indo-European*bʰedʰh₂-
- Latinbattuō
- Latinbattere
- Old Frenchbatre
- Old Frenchbaterie
- Middle Frenchbatterie
- Englishbattery
- English todaynanobattery
Etymology from Wiktionary, CC BY-SA 4.0.