Where does “triennial” come from?
Triennial derives from Latin triennium, a period of three years, from Latin annus (year) combined with the numeral three, which traces back through Proto-Germanic þrīz to Proto-Indo-European tréyes.
triennial (English): Happening every three years; Lasting for three...
Definitions
- Happening every three years; Lasting for three...
Ancestry of “triennial”, step by step
Words derived from “triennial”