tractatorium

From tractō (“to discuss or debate, to manage, to transact”) + -tōrium.

• (Classical Latin) IPA^(key): [trak.taːˈtoː.ri.ũː]
• (modern Italianate Ecclesiastical) IPA^(key): [trak.taˈtɔː.ri.um]

tractātōrium n (genitive tractātōriī or tractātōrī); second declension

1. a place where deliberations were held, causes tried
2. a place of business, session room

Second-declension noun (neuter).

¹Found in older Latin (until the Augustan Age).

• “tractatorium”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “tractatorium”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.
• "tractatorium", in Charles du Fresne du Cange, Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)