† quinquennariann.
Origin: A borrowing from Latin, combined with an English element. Etymons: Latin quīnquennis , -arian suffix.
Etymology: < classical Latin quīnquennis five years old (see quinquenniad n.) + -arian suffix.
Obsolete.
rare.
1821 10 118 Teaching scholars..mostly quinquennarians, or at most sexennarians.
This entry has been updated (OED Third Edition, December 2007; most recently modified version published online June 2021).