Other forms: trilogies
A trilogy is a set of three connected works. Finish the trilogy.
The three stand alone and gain from each other, which is what separates it from a serial. A trilogy that was planned as one is rarer than one that grew.
1nountrilogyA set of three connected works.
“The trilogy took eleven years and the last book was the shortest.”
trilogy is a set.
Greek trilogia named a set of three tragedies performed together.
Proto-Indo-European
*tréyes
Ancient Greek
τριλογία — trilogy
Latin
trilogia
English, today
trilogy
Latin trilogia, itself borrowed from Ancient Greek τριλογία (“trilogy”). Morphologically from tri- + -logy.
Etymology from Wiktionary, CC BY-SA