The story
- Proto-Indo-European*déḱs
- Proto-Indo-European*deḱs-terós
- Proto-Italic*deksteros
- Latindexter
- Proto-Indo-European*h₃ed-
- Proto-Indo-European*h₃édosder.?
- English todaydexterous
From Latin dexter (“right, ready”) + -ous. Displaced native Old English handcræftiġ.
Etymology from Wiktionary, CC BY-SA 4.0.