Epistemology
The word "epistemology" is derived from the ancient Greek "epistēmē" meaning "knowledge" and the suffix "-logy", meaning "logical discourse" (derived from the Greek word "logos" meaning "discourse"). It is analogue to the German "Wissenschaftslehre" (literally, theory of science) which was introduced by philosophers Johann Fichte and Bernard Bolzano in the late 18th century. The word first appeared in English in 1847 as a translation of the German in New York's "Eclectic Magazine" review of a philosophical novel by German author Jean Paul:
Epoché
Epoché (ἐποχή "epokhē", "suspension") is an ancient Greek term typically translated as "suspension of judgment" but also as "withholding of assent". In its philosophical usage "epoché" describes the state where all judgments about non-evident matters are suspended in order to induce a state of ataraxia (freedom from worry and anxiety). This concept was developed by the Pyrrhonist school of philosophy and was also employed in Academic Skepticism.