Centurial :: Centurial (a.) Of or pertaining to a century; as, a centurial sermon..
Centuriate :: Centuriate (a.) Pertaining to, or divided into, centuries or hundreds..
Centurion :: Centurion (n.) A military officer who commanded a minor division of the Roman army; a captain of a century.
Centurist :: Centurist (n.) An historian who distinguishes time by centuries, esp. one of those who wrote the Magdeburg Centuries. See under Century..