Merriam-Webster Collegiate Dictionary - novelize

 transitive verb  (-ized; -izing)  Date: 1828 to convert into the form of a novel ~ a play  • novelization noun NOVELLA  noun  (plural ~s or novelle)  Etymology: Italian, from feminine of novello new, from Latin novellus  Date: 1898  1. plural novelle a story with a compact and pointed plot  2. plural usually ~s a work of fiction intermediate in length and complexity between a short story and a novel