The story
- Proto-Indo-European*dwóh₁
- Proto-Indo-European*dwi-
- Proto-Hellenic*dwi-
- Ancient Greekδῐ- (dĭ-)
- Latindi-
- Englishdi-
- Proto-Indo-European*bʰeh₂-
- Proto-Hellenic*pʰōnā́
- Ancient Greekφωνή (phōnḗ)
- Englishphone
- English todaydiphone
Etymology from Wiktionary, CC BY-SA 4.0.