From Latin *scepticus, (attested only in plural Sceptici (“the sect of Skeptics”)), from Ancient Greek σκεπτικός (skeptikós, “thoughtful, inquiring”), from σκέπτομαι (sképtomai, “I consider”), compare to σκοπέω (skopéō, “I view, examine”). (Note: In French, C in front of E and I had shifted (or was shifting) from the original [k] sound of Latin to the [s] sound, which might explain the double spelling, as some might have wanted to make sure that [k] would remain [k] by bringing back the K from the Greek spelling.)
- Someone who habitually doubts beliefs and claims presented as accepted by others, requiring strong evidence before accepting any belief or claim.
- Someone undecided as to what is true.
- A type of agnostic; someone skeptical towards religion.
- Douglas Harper, “skeptic”, in Online Etymology Dictionary, 2001–2021.
- skeptic in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
- skeptic in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
- skeptic at OneLook Dictionary Search