After playing through Oblivion and Morrowind, I noticed that in Morrowind the term Drakes is used a lot more to describe currency than Septims. Which is the correct term and where did the incorrect term come from?
Neither Drake nor Septim is wrong (there's a drake, the Septim Dragon sigil, on the coin). Septim and Drake can be used synonymously, perhaps "drake" is used colloquially, just like "buck" for "dollar".
Edit: Too slow!