The story
- Proto-Indo-European*sek-?
- Proto-Indo-European*skey-
- Latinsciō
- Latinsciēns
- Classical Latinscientia
- Latinscientia
- Medieval Latinscientificus
- Middle Frenchscientifique
- Englishscientific
- English todayscientism
From scient- (in either Classical Latin scientia or scientific) + -ism. Compare scientist.
Etymology from Wiktionary, CC BY-SA 4.0.