The Collaborative International Dictionary of English v.0.48:

Centuriate \Cen*tu"ri*ate\, a. [L. centuriatus, p. p. of
   centuriare to divide (men) into centuries.]
   Pertaining to, or divided into, centuries or hundreds. [R.]
   --Holland.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Centuriate \Cen*tu"ri*ate\, v. t. [See century.]
   To divide into hundreds. [Obs.]
   [1913 Webster] Centuriator