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From defendi +‎ -o.


  • IPA(key): /deˈfendo/
  • Hyphenation: de‧fend‧o
  • Rhymes: -endo


defendo (uncountable, accusative defendon)

  1. defense (US), defence (Commonwealth)



From dē- +‎ *fendō (hit, thrust), from Proto-Indo-European *gʷʰen- (to strike, to kill). Compare offendō.



dēfendō (present infinitive dēfendere, perfect active dēfendī, supine dēfēnsum); third conjugation

  1. to drive away
  2. to defend, guard or protect, to stand up for, to stick up for
    • 63 BCE, Cicero, Catiline Orations Oratio in Catilinam Prima in Senatu Habita.6:
      Quam diu quisquam erit qui te defendere audeat, vives, et vives ita ut nunc vivis, multis meis et firmis praesidiis obsessus ne commovere te contra rem publicam possis. Multorum te etiam oculi et aures non sentientem, sicut adhuc fecerunt, speculabuntur atque custodient.
      As long as one person exists who can dare to defend you, you shall live; but you shall live as you do now, surrounded by my many and trusty guards, so that you shall not be able to stir one finger against the republic: many eyes and ears shall still observe and watch you, as they have hitherto done, though you shall not perceive them.


   Conjugation of dēfendō (third conjugation)
indicative singular plural
first second third first second third
active present dēfendō dēfendis dēfendit dēfendimus dēfenditis dēfendunt
imperfect dēfendēbam dēfendēbās dēfendēbat dēfendēbāmus dēfendēbātis dēfendēbant
future dēfendam dēfendēs dēfendet dēfendēmus dēfendētis dēfendent
perfect dēfendī dēfendistī dēfendit dēfendimus dēfendistis dēfendērunt, dēfendēre
pluperfect dēfenderam dēfenderās dēfenderat dēfenderāmus dēfenderātis dēfenderant
future perfect dēfenderō dēfenderis dēfenderit dēfenderimus dēfenderitis dēfenderint
passive present dēfendor dēfenderis, dēfendere dēfenditur dēfendimur dēfendiminī dēfenduntur
imperfect dēfendēbar dēfendēbāris, dēfendēbāre dēfendēbātur dēfendēbāmur dēfendēbāminī dēfendēbantur
future dēfendar dēfendēris, dēfendēre dēfendētur dēfendēmur dēfendēminī dēfendentur
perfect dēfēnsus + present active indicative of sum
pluperfect dēfēnsus + imperfect active indicative of sum
future perfect dēfēnsus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present dēfendam dēfendās dēfendat dēfendāmus dēfendātis dēfendant
imperfect dēfenderem dēfenderēs dēfenderet dēfenderēmus dēfenderētis dēfenderent
perfect dēfenderim dēfenderīs dēfenderit dēfenderīmus dēfenderītis dēfenderint
pluperfect dēfendissem dēfendissēs dēfendisset dēfendissēmus dēfendissētis dēfendissent
passive present dēfendar dēfendāris, dēfendāre dēfendātur dēfendāmur dēfendāminī dēfendantur
imperfect dēfenderer dēfenderēris, dēfenderēre dēfenderētur dēfenderēmur dēfenderēminī dēfenderentur
perfect dēfēnsus + present active subjunctive of sum
pluperfect dēfēnsus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present dēfende dēfendite
future dēfenditō dēfenditō dēfenditōte dēfenduntō
passive present dēfendere dēfendiminī
future dēfenditor dēfenditor dēfenduntor
non-finite forms active passive
present perfect future present perfect future
infinitives dēfendere dēfendisse dēfēnsūrum esse dēfendī dēfēnsum esse dēfēnsum īrī
participles dēfendēns dēfēnsūrus dēfēnsus dēfendendus, dēfendundus
verbal nouns gerund supine
genitive dative accusative ablative accusative ablative
dēfendendī dēfendendō dēfendendum dēfendendō dēfēnsum dēfēnsū

Derived terms[edit]

Related terms[edit]



  • defendo in Charlton T. Lewis and Charles Short, A Latin Dictionary, Oxford: Clarendon Press, 1879
  • defendo in Charlton T. Lewis, An Elementary Latin Dictionary, New York: Harper & Brothers, 1891
  • defendo in Gaffiot, Félix, Dictionnaire illustré Latin-Français, Hachette, 1934
  • Carl Meissner; Henry William Auden, Latin Phrase-Book[1], London: Macmillan and Co., 1894
    • to repel an injury: iniurias defendere, repellere, propulsare
    • to protect any one from wrong: ab iniuria aliquem defendere
    • to meet force by force: vi vim illatam defendere
    • to guard, maintain one's dignity: dignitatem suam tueri, defendere, retinere, obtinere
    • to take up the cause of the people, democratic principles: causam popularem suscipere or defendere
    • to conduct some one's defence in a case: causam alicuius defendere
    • to act on the defensive: bellum (inlatum) defendere




  1. first-person singular (eu) present indicative of defender