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:
Traditional story
An etiological myth, or origin myth, is a myth intended to explain the origins of cult practices, natural phenomena, proper names and the like, or create a mythic history for a place or family. For example, the name Delphi and its associated deity, "Apollon Delphinios", are explained in the Homeric Hymn which tells of how Apollo carried Cretans over the sea in the shape of a dolphin (') to make them his priests. While Delphi is actually related to the word ' ("womb"), many etiological myths are similarly based on folk etymology (the term "Amazon", for example). In the "Aeneid" (published circa 17 BC), Vergil claims the descent of Augustus Caesar's Julian clan from the hero Aeneas through his son Ascanius, also called Iulus. 
The story of Prometheus' sacrifice-trick in Hesiod's "Theogony" relates how Prometheus tricked Zeus into choosing the bones and fat of the first sacrificial animal rather than the meat to justify why, after a sacrifice, the Greeks offered the bones wrapped in fat to the gods while keeping the meat for themselves.