rationarium

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

rătĭōnārĭum, ĭi, n. [ratio],

a statistical table , schedule , book of accounts : imperii, Suet. Aug. 28 (for which: breviarium imperii, id. ib. 101; cf. Tac. A. 1, 11).