intempestum

From intempestus. As a noun, from earlier use of the adjective in reference to intempesta nox (“dismal/unhealthy night”) as both a time of night and goddess.

• (Classical) IPA^(key): /in.temˈpes.tum/, [ɪn̪t̪ɛmˈpɛs̠t̪ʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /in.temˈpes.tum/, [in̪t̪emˈpɛst̪um]

intempestum

1. inflection of intempestus:
   1. nominative/accusative/vocative neuter singular
   2. accusative masculine singular

intempestum n (genitive intempestī); second declension

1. (Medieval Latin) midnight; the time around midnight.

In Medieval use (e.g., Bede), sometimes conceived as a particular period of night lasting from conticinium, when most animals became quiet, to gallicinium, when roosters began to crow.

Second-declension noun (neuter).

• "Anglo-Saxon Manual of Astronomy", p. 6, in Popular Treatises on Science Written during the Middle Ages (1841), London: Historical Society of Science.