computatorium

• computōrium (Medieval Latin, haplology)

From computō (“to reckon”) +‎ -tōrium (locational or instrumental substantivization), neuter of -tōrius. In the medieval attestations, likely a mechanical rendering of the early Romance equivalent of modern French comptoir into proper Latin; in the New Latin sense, translates English computer.

• (Classical) IPA^(key): /kom.pu.taːˈtoː.ri.um/, [kɔmpʊt̪äːˈt̪oːriʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /kom.pu.taˈto.ri.um/, [komput̪äˈt̪ɔːrium]

computātōrium n (genitive computātōriī or computātōrī); second declension

1. (Medieval Latin) counter, compter (various inanimate senses)
   1. table, desk or chest for counting (or keeping) money
   2. token used for keeping count
   3. room or house for counting (accounting)
   4. (England) compter, sheriff's court or prison

      Synonym: (Medieval Latin, less common) computārium

2. (New Latin) computer (reckoning device)

   Synonyms: (New Latin) computātrum, ōrdinātrum, ōrdinātōrium

Second-declension noun (neuter).

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

• computatorium in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• “computatorius”, “computatorium”, in ΛΟΓΕΙΟΝ [Logeion] (in English, French, Spanish, German, Dutch and Chinese), University of Chicago, 2011