quinquennial

Borrowed from Latin quīnquennālis, with some influence from quīnquennium (“five-year period”).

• IPA^(key): /kwɪŋˈkwɛ.ni.əl/

quinquennial (not comparable)

1. Of or related to a five-year period.
   • 1879, F. D. Morice, Pindar, chapter 3, p. 25:

     By a singular coincidence, the great master of the Dorian lyre was born during the celebration of the Pythia, the quinquennial festival of Apollo […]

• pentennial, quintennial

• quinquennially

• quinquennalia

quinquennial (plural quinquennials)

1. A five-year period.
2. A 5th anniversary.

• quintennial, wooden anniversary