insanus

From in- +‎ sānus (“healthy, sound”).

• (Classical) IPA^(key): /inˈsaː.nus/, [ĩːˈs̠äːnʊs̠]
• (modern Italianate Ecclesiastical) IPA^(key): /inˈsa.nus/, [inˈsäːnus]

īnsānus (feminine īnsāna, neuter īnsānum, comparative īnsānior, superlative īnsānissimus); first/second-declension adjective

1. mad, insane, demented
   • c. 200 BCE – 190 BCE, Plautus, Captivi 3.4:

     Aristophontes: Quid tu autem? Etiam huic credis?
     Hegio: Quid ego credam huic?
     Aristophontes: Insanum esse me?

     Aristophontes: How’s this? You, too? Do you actually believe him?
     Hegio: Believe him in what?
     Aristophontes: That I’m insane?

   • c. 200 BCE – 190 BCE, Plautus, Captivi 3.4:

     Quid ais? Quid si adeam hunc insanum?

     See here, what if I should step up to this lunatic?

First/second-declension adjective.

• īnsānitās

• Catalan: insà
• English: insane
• French: insane
• Italian: insano
• Portuguese: insano
• Spanish: insano

• “insanus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• “insanus”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• insanus 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)
• insanus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.
• insanus in Ramminger, Johann (2016 July 16 (last accessed)) Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700‎, pre-publication website, 2005-2016