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From Middle English, from Latin mūtuum (loan), neuter substantive of mūtuus (borrowed, lent).


mutuum (plural mutuums or mutua)

  1. a loan in Roman and civil law of fungible things to be restored in similar property of the same quantity and quality
  2. a contract in which movables are so loaned
  3. a loan for consumption


Etymology 1[edit]

Substantive of mūtuus (borrowed, lent).


mūtuum n (genitive mūtuī); second declension

  1. loan
  2. accusative singular of mūtuum
  3. vocative singular of mūtuum

Second declension.

Case Singular Plural
nominative mūtuum mūtua
genitive mūtuī mūtuōrum
dative mūtuō mūtuīs
accusative mūtuum mūtua
ablative mūtuō mūtuīs
vocative mūtuum mūtua

Etymology 2[edit]

Inflection form of mūtuus (borrowed, lent).



  1. nominative neuter singular of mūtuus
  2. accusative masculine singular of mūtuus
  3. accusative neuter singular of mūtuus
  4. vocative neuter singular of mūtuus


  • du Cange, Charles (1883), “mutuum”, in G. A. Louis Henschel, Pierre Carpentier, Léopold Favre, editors, Glossarium Mediæ et Infimæ Latinitatis (in Latin), Niort: L. Favre
  • mutuum in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
  • mutuum in William Smith et al., editor (1890) A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin