What's the difference between i.e. and e.g.?
1709, an antiquarians' revival to describe the medieval prose narratives of Iceland and Norway, from Old Norse saga "saga, story," cognate with Old English sagu "a saying" (see saw (n.2)). Properly, a narrative composition of Iceland or Norway in the Middle Ages, or one that has their characteristics. Meaning "long, convoluted story" is from 1857.