The story
- Proto-Indo-European*dews-?
- Proto-Indo-European*dus-
- Proto-Hellenic*dus-
- Ancient Greekδυσ- (dus-)
- New Latindys-
- Englishdys-
- Englishkeratosis
- Englishdyskeratosis
- English todaydyskerin
From dyskeratosis + -in.
Etymology from Wiktionary, CC BY-SA 4.0.