Definition of quingenary in US English:

quingenary

noun

  • Quincentenaryrare.

adjective

  • Roman History. Consisting of five hundred men; accommodating or designed for a unit of five hundred men.

Origin

Early 20th century; earliest use found in The Times. From classical Latin quīngēnārius consisting of five hundred men, weighing five hundred pounds from quīngēnī five hundred each + -ārius.