The story
- Proto-Indo-European*dwóh₁
- Proto-Indo-European*dwi-
- Proto-Italic*dwi-
- Latinbi-
- Englishbi-
- Ancient Greekχαράσσω (kharássō)
- Ancient Greekχαρακτήρ (kharaktḗr)
- Ancient Greekχαρακτηρίζω (kharaktērízō)
- Ancient Greekχᾰρᾰκτηριστῐκός (khărăktēristĭkós)
- Englishcharacteristic
- English todaybicharacteristic
From bi- + characteristic.
Etymology from Wiktionary, CC BY-SA 4.0.