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From laciō (I snare, entice) +‎ -essō.



lacessō (present infinitive lacessere, perfect active lacessīvī, supine lacessītum); third conjugation

  1. I excite, provoke, challenge, exasperate, harass or irritate
  2. I attack or assail
    • Motto of the Stuart dynasty of Scotland
      Nemo me impune lacessit[1]
      No one attacks me unpunished.


   Conjugation of lacesso (third conjugation)
indicative singular plural
first second third first second third
active present lacessō lacessis lacessit lacessimus lacessitis lacessunt
imperfect lacessēbam lacessēbās lacessēbat lacessēbāmus lacessēbātis lacessēbant
future lacessam lacessēs lacesset lacessēmus lacessētis lacessent
perfect lacessīvī lacessīvistī lacessīvit lacessīvimus lacessīvistis lacessīvērunt, lacessīvēre
pluperfect lacessīveram lacessīverās lacessīverat lacessīverāmus lacessīverātis lacessīverant
future perfect lacessīverō lacessīveris lacessīverit lacessīverimus lacessīveritis lacessīverint
passive present lacessor lacesseris, lacessere lacessitur lacessimur lacessiminī lacessuntur
imperfect lacessēbar lacessēbāris, lacessēbāre lacessēbātur lacessēbāmur lacessēbāminī lacessēbantur
future lacessar lacessēris, lacessēre lacessētur lacessēmur lacessēminī lacessentur
perfect lacessītus + present active indicative of sum
pluperfect lacessītus + imperfect active indicative of sum
future perfect lacessītus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present lacessam lacessās lacessat lacessāmus lacessātis lacessant
imperfect lacesserem lacesserēs lacesseret lacesserēmus lacesserētis lacesserent
perfect lacessīverim lacessīverīs lacessīverit lacessīverīmus lacessīverītis lacessīverint
pluperfect lacessīvissem lacessīvissēs lacessīvisset lacessīvissēmus lacessīvissētis lacessīvissent
passive present lacessar lacessāris, lacessāre lacessātur lacessāmur lacessāminī lacessantur
imperfect lacesserer lacesserēris, lacesserēre lacesserētur lacesserēmur lacesserēminī lacesserentur
perfect lacessītus + present active subjunctive of sum
pluperfect lacessītus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present lacesse lacessite
future lacessitō lacessitō lacessitōte lacessuntō
passive present lacessere lacessiminī
future lacessitor lacessitor lacessuntor
non-finite forms active passive
present perfect future present perfect future
infinitives lacessere lacessīvisse lacessītūrus esse lacessī lacessītus esse lacessītum īrī
participles lacessēns lacessītūrus lacessītus lacessendus
verbal nouns gerund supine
nominative genitive dative/ablative accusative accusative ablative
lacessere lacessendī lacessendō lacessendum lacessītum lacessītū


  • lacesso in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • lacesso in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • lacesso” in Félix Gaffiot’s Dictionnaire Illustré Latin-Français, Hachette (1934)
  • Carl Meissner; Henry William Auden (1894) Latin Phrase-Book[2], London: Macmillan and Co.
    • to provoke a person by a gratuitous insult: iniuria lacessere aliquem
    • to harass with war: bello persequi aliquem, lacessere
    • to provoke the enemy to battle: proelio (ad pugnam) hostes lacessere, provocare