The story
- Ancient Greekνᾶνος (nânos)
- Latinnānus
- Englishnano-
- Proto-Indo-European*gʷʰiH-(s-)lo-
- Proto-Italic*fī(s)lom
- Latinfīlum
- Late Latinfīlō
- Medieval Latinfīlāmentum
- Englishfilament
- English todaynanofilament
Etymology from Wiktionary, CC BY-SA 4.0.