Trilogy.... what about four, five and six parts also.... 3, 4, 5, 6?

A trilogy as we know is three parts.





Could four parts be a quadrilogy? What about five or six? For that matter what about two?





I've thought about using quartet/quintet/sextet, but perhaps someone can suggest something better?Trilogy.... what about four, five and six parts also.... 3, 4, 5, 6?
I am instinctively inclined to go for quadrology, quintology, sextology, etc, although I'm pretty sure none of those is a real word.Trilogy.... what about four, five and six parts also.... 3, 4, 5, 6?
your second guess is correct
tetrology or quadrilogy, - a compound work that is made up of four (numerical prefix tetra-) distinct works.





Five-book series and six-book series are used for series of five and six books respectively.
Are we talking books or movies?


a series, ex. in a 3 part series, there would be 3 sequels. ,


assuming each one was a continuation of the previous one





a set , a 4 part/piece set, they are not sequels and would be only related by one or two areas area, like household repair