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dīmidiō (I halve, stem with thematic vowel: dīmidiā-) +‎ -tiō (suffix forming verbal nouns)


  • (Classical) IPA(key): /diː.mi.diˈaː.ti.oː/, [diː.mɪ.dɪˈaː.ti.oː]


dīmidiātiō f (genitive dīmidiātiōnis); third declension

  1. (Late Latin) a halving, a dividing into halves
    Unde hæc dimidiatio salutis.
    (please add an English translation of this usage example)
  2. (Medieval Latin, heraldry) a dimidiation (marshalling of two coats of arms from the dexter half of one coat and the sinister half of the other)


Third declension.

Case Singular Plural
nominative dīmidiātiō dīmidiātiōnēs
genitive dīmidiātiōnis dīmidiātiōnum
dative dīmidiātiōnī dīmidiātiōnibus
accusative dīmidiātiōnem dīmidiātiōnēs
ablative dīmidiātiōne dīmidiātiōnibus
vocative dīmidiātiō dīmidiātiōnēs



  • dīmĭdĭātĭo in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • du Cange, Charles (1883), “dimidiatio”, in G. A. Louis Henschel, Pierre Carpentier, Léopold Favre, editors, Glossarium Mediæ et Infimæ Latinitatis (in Latin), Niort: L. Favre
  • dīmĭdĭātĭo in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français [Illustrated Latin-French Dictionary], Hachette, pages 529–530
  • Niermeyer, Jan Frederik (1976), “dimidiatio”, in Mediae Latinitatis Lexicon Minus (in Latin), Leiden, Boston: Brill, page 333