From Proto-Indo-European *nu (now; well; and) + diūs, reflecting the original of diēs (day) that was later remodelled on the accusative. The former component cognate to Latin num (interrogative particle), nunc (now), nūper (lately, recently); its length is uncertain, since the original short vowel of PIE appears to have undergone lengthening in numerous daughter languages. The original nominative also surfaces in me-dius-Fidius (so help me God, interjection) as well as in diurnus; whether it retained the length of the ū cannot be established.


  • (Classical) IPA(key): /ˈnuː.di.uːs/, [ˈnuː.d̪i.uːs̠] or IPA(key): /ˈ, [ˈnʊ.d̪i.ʊs̠]
  • (Ecclesiastical) IPA(key): /ˈ, [ˈnuː.d̪]
  • Note: the length of either vowel is uncertain - see Etymology.


nū̆diū̆s (not comparable)

  1. (with an ordinal number) (...1) days ago; literally "it is now the day since"
    Nudius tertius.
    Day before yesterday. (It is now the third day)
    Nudius quartus.
    Day before the day before yesterday; three days ago. (Not four. Latin day counting included both endpoints; if three days ago is the first day, it is now the fourth day.)
    Nudius tertius decimus.
    Twelve days ago.
    Nam ego Lemno advenio Athenas nudius tertius.
    Now I reach Athens from Lemnos the day before yesterday.
    Nudius sextus cui talentum mutuum dedi, reposcam.
    It is now the sixth day since I demanded back the borrowed talent whom I have given.
    Heia, nudius quintus natus quidem ille est.
    Why, indeed it is now the fifth day since he was born.
    Recordamini qui dies nudius tertius decimus fuerit.
    Recollect what a day it was twelve days ago.
    Heri et nudius tertius, quartus, quintus, sextus...
    Yesterday and the day before yesterday, and the day before that, and the day before that, and the day before that.
    Nudius tertius dedi ad te epistulam longiorem.
    I gave you the longer letter the day before yesterday.


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Derived termsEdit


  • English: nudiustertian

See alsoEdit