The Collaborative International Dictionary
Centurist
Centuriator \Cen*tu"ri*a`tor\, Centurist \Cen"tu*rist\, n. [Cf. F. centuriateur.] An historian who distinguishes time by centuries, esp. one of those who wrote the ``Magdeburg Centuries.'' See under Century. [R.]
Wiktionary
centurist
n. A centuriator.