Här finns mycket att läsa om romance, novel, novella och short story:
Wiki - Novel. Se särskilt stycket om etymologin bl a med avsnittet The words "novel" and "romance".
Citat:
The present English (and Spanish) word derives from the Italian novella for "new", "news", or "short story of something new", itself from the Latin novella, a singular noun use of the neuter plural of novellus, diminutive of novus, meaning "new".[10] Most European languages have preserved the term "romance" (as in French, German, Croatian and Swedish "Roman", and in Portuguese "Romance") for extended narratives.
The English and Spanish decisions came with the 17th-century fashion of shorter exemplary histories. See the chapters "Petites histoires" or "novels", 1600–1740 and The words "novel" and "romance" in the following.