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See also: sínum




  1. indefinite dative plural of sin



Etymology 1[edit]

Maybe from a Proto-Indo-European root common with Lithuanian sìlis (crib) and sìlė (trough)[1].

Alternative forms[edit]


sīnum n (genitive sīnī); second declension

  1. A large, round drinking vessel with swelling sides

Second-declension noun (neuter).

Case Singular Plural
Nominative sīnum sīna
Genitive sīnī sīnōrum
Dative sīnō sīnīs
Accusative sīnum sīna
Ablative sīnō sīnīs
Vocative sīnum sīna

Etymology 2[edit]



  1. accusative singular of sīnus


  • sinum in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • sinum in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • sinum in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
  • sinum in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • (ambiguous) on good grounds; reasonably: non sine causa
    • (ambiguous) without doubt, beyond all doubt: sine dubio (not sine ullo dubio)
    • (ambiguous) without any hesitation; without the least scruple: sine ulla dubitatione
    • (ambiguous) without delay: sine mora or nulla mora interposita
    • (ambiguous) to be driven into the arms of philosophy: in sinum philosophiae compelli
    • (ambiguous) indisputably; incontestably: sine (ulla) controversia
    • (ambiguous) to read a speech: de scripto orationem habere, dicere (opp. sine scripto, ex memoria)
    • (ambiguous) without any disguise, frankly: sine fuco ac fallaciis (Att. 1. 1. 1)
    • (ambiguous) with no moderation: sine modo; nullo modo adhibito
    • (ambiguous) to lend some one money (without interest): pecuniam alicui credere (sine fenore, usuris)
    • (ambiguous) to restore prisoners without ransom: captivos sine pretio reddere
  • sinum in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
  1. ^ Walde, Alois; Hofmann, Johann Baptist (1954) , “sinum”, in Lateinisches etymologisches Wörterbuch (in German), volume 2, 3rd edition, Heidelberg: Carl Winter, page 546