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Neuter of mustus (newborn, new, fresh, perhaps lit. 'wet')



mustum n (genitive mustī); second declension

  1. must; unfermented or partially fermented grape juice or wine; new wine; vintage
    • 43 BCEc. 17 CE, Ovid, Fasti 3.558:
      inque cavōs ierant tertia musta lacūs
      and three times had the must been poured into the hollow wine-vats
      (The Latin word for ‘‘new’’ or ‘‘fresh’’ is mustus; mustum means freshly pressed grape juice or must.)


Second-declension noun (neuter).

Case Singular Plural
Nominative mustum musta
Genitive mustī mustōrum
Dative mustō mustīs
Accusative mustum musta
Ablative mustō mustīs
Vocative mustum musta

Derived terms[edit]


  • Aromanian: mustu
  • Catalan: most
  • Friulian: most
  • Galician: mosto
  • Italian: mosto
  • Old French: moust
  • Portuguese: mosto
  • Romanian: must
  • Sicilian: mustu
  • Spanish: mosto
  • Venetian: mosto
  • Albanian: musht
  • Ancient Greek: μοῦστος (moûstos)
  • Hungarian: must
  • Welsh: mwst
  • Proto-West Germanic: *must (see there for further descendants)


  • mustum”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • mustum”, in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • mustum in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette
  • mustum”, in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
  • mustum”, in William Smith et al., editor (1890) A Dictionary of Greek and Roman Antiquities, London: William Wayte. G. E. Marindin