triology

plural triologies

1. A trilogy.

   The Hunger Games: Mockingjay Part 2 concludes triology on a high note

   2015 December 10, The Speaking Eagle, edition XVII, Juan Diego Catholic High School, page 17

   2 more examples

   Among the remaining pieces of Æschylus, we have what is highly deserving of our attention, a complete triology. The antiquarian account of triologies is this, that in the more early times the poet did not contend for the prize with a single piece, but with three, which however were not always connected together by their contents, and that a fourth satirical drama was also attached to them.

   1848, Frederic H[enry] Hedge, Prose Writers of Germany, Philadelphia, Pa.: Carey and Hart, page 433, column 2

   Anthony Burgess’s Enderby triology is now a tetralogy, with a new volume “Composed to placate kind readers of The Clockwork Testament, or Enderby’s End, who objected to my casually killing my hero.”

   1984 May 5, Keith Wilson, “Burgess raises Clockwork man from the dead”, in The Weekend Citizen, Ottawa, Ont., page 44