The story
- Proto-Italic · derived from*spektos“see, observing”
- Late Latin · borrowed fromscepticus
- Middle French · borrowed fromsceptique
- English todayskeptic
Borrowed from Middle French sceptique (but with a pronunciation closer to that of the Latin etymon), or possibly directly from Late Latin scepticus (originally attested only in the plural Scepticī (“the sect of Skeptics”)), from Proto-Italic *spektos (“see, observing”), from *speḱ- (“to see”), compare to σκοπέω (skopéō, “to view, examine”).
Etymology from Wiktionary, CC BY-SA 4.0.