What do you call a 4 or 5 book series?

I'm annoyed. I know, it doesn't happen often, but I am. Why? Because there is no good word to describe a 4 or 5 book series. The Second Draeken War is comprised of four books, and The White Mage Saga will be five. Supposedly a four book series is called a "Quadrilogy". (What a mouthful.) I've also heard it called a quartet. A five is a quintet. Or sometimes I heard people say that they read "A series of four". Who has the time to say that? It's no wonder nobody uses them. How would you say them in conversation? "Hey, I found an awesome quintet last month." It sounds like you are dating one of four quadruplets. (I know, this isn't really something to be annoyed at, but hey, my editor has my book this week.) Now, I plan on fixing it. I've decided that the word "Qualogy" makes much better sense. So does the word "Quilogy". I've started using it in regular conversation with my author and reader friends, and they are starting to use it back to me. If anyone reads this, and likes this idea, spread the word. Oh, and pretend like it's actually a word. Words like "Selfie" are now in the actual dictionary because people used them so much. As big as the dictionary is there is not a word to describe everything. Nor is this the first time I've had this problem. Just so you know, here is the list of other words I've invented because I can't find them in the thesaurus.

Iseonix- opposite of a phoenix. A powerful frostbird. Sentenium- a period of 10,000 years. (I know, sounds legit, right?) Qualogy- a four book series Quilogy- a five book series

(this list doesn't include Lumineia specific words, except perhaps the Iseonix.)

Let's make this happen people, one word at a time. Then we can sit back and laugh when the world starts to use the terminolgy we started.