tril‧o‧gy /ˈtrɪlədʒi/
noun (
plural trilogies)
[countable][
Date: 1600-1700;
Language: Greek;
Origin: trilogia 'group of three plays', from tri- 'three' + -logia '-logy']
a series of three plays, books etc that are about the same people or subject:
part 2 of a trilogy [TahlilGaran] Dictionary of Contemporary English ▲