R / rătĭōnārĭum
noun

rătĭōnārĭum

gen. rătĭōnārĭi · gender neuter · decl. 2nd
a statistical table; schedule; book of accounts
a statistical table, schedule, book of accounts: imperii, Suet. Aug. 28 (for which: breviarium imperii, id. ib. 101; cf. Tac. A. 1, 11).