noun (plural -gies) Etymology: Greek tetralogia, from tetra- + -logia -logy Date: 1656 a group of four dramatic pieces presented consecutively on the Attic stage at the Dionysiac festival, a series of four connected works (as operas or novels)
TETRALOGY
Meaning of TETRALOGY in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012