Prose
The word "prose" first appears in English in the 14th century. It is derived from the Old French "prose", which in turn originates in the Latin expression "prosa oratio" (literally, straightforward or direct speech).
Novel
The entire genre has been seen as having "a continuous and comprehensive history of about two thousand years", with its origins in classical Greece and Rome, in medieval and early modern romance, and in the tradition of the Italian renaissance novella. (Since the 18th century, the term "novella", or "novelle" in German, has been used in English and other European languages to describe a long short story or a short novel.)