The story
- Proto-Indo-European*kʷetwóres
- Proto-Hellenic*kʷétwores
- Ancient Greekτέσσᾰρες (téssăres)
- Ancient Greekτετρᾰ- (tetră-)
- Englishtetra-
- Proto-Italic*knuks
- Latinnux
- Latinnucleu
- Englishnucleus
- Englishnucleo-
- Proto-Indo-European*dʰeh₁-
- Englishnucleotide
- English todaytetranucleotide
From tetra- + nucleotide.
Etymology from Wiktionary, CC BY-SA 4.0.