Adversaria
Adversaria note-book, memorandum-book, posting-book, in which the Romans entered memoranda of any importance, especially of money received and expended, which were afterwards transcribed, usually every month, into a kind of ledger. (Tabulae justae, codex accepti et expensi.) The adversaria were not admitted as legal evidence, although the tabulae were (cf. Gaius, § 128-133; Ortolan, Explic. Hist. 3.244 ff.). They were probably called adversaria because they lay always open before the eyes. (Cic. p. Rosc. Com. 2,7; Propert. 3.23, 20.)
From William Smith (ed.), Dictionary of Greek and Roman Antiquities. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.