Definition of praepostor in English:

praepostor

noun

British
  • (at some public schools) a prefect or monitor.

Origin

Mid 18th century: from praepositor, alteration of Latin praepositus head, chief, past participle of praeponere set over, from prae ahead + ponere to place.

Pronunciation:

praepostor

/prɪˈpɒstə/