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From Latin ulter, originally the masculine ablative.



ultrō (not comparable)

  1. to the farther side, beyond, on the other side
  2. (with citro) to and fro, back and forth, on this side and on that
  3. afar, away, off
  4. besides, moreover, too, over and above
  5. conversely, on the other hand
  6. (figuratively) superfluously, gratuitously, wantonly
  7. (figuratively) of one's own accord, without being asked, spontaneously, voluntarily, freely
    • c. 37 BCE – 30 BCE, Virgil, Georgicon 4.265:
      [] ultro / hortantem et fessas ad pabula nota vocantem
      [] freely / calling them and exhorting the weary insects to eat their familiar food.

Derived terms[edit]


  • ultro in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • ultro in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • ultro in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • on this side and on that; to and fro: ultro citroque
    • to be the aggressor in a war; to act on the offensive: bellum or arma ultro inferre