The story
- Proto-Indo-European*sek-?
- Proto-Indo-European*skey-
- Latinsciō
- Latinsciēns
- Latinscientia
- Medieval Latinscientificus
- Middle Frenchscientifique
- Englishscientific
- English todayscientifically
From scientific + -ally.
Etymology from Wiktionary, CC BY-SA 4.0.