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



lacessō (present infinitive lacessere, perfect active lacessīvī or lacessiī, 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 lacessō (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, lacessiī lacessīvistī, lacessiistī lacessīvit, lacessiit lacessīvimus, lacessiimus lacessīvistis, lacessiistis lacessīvērunt, lacessīvēre, lacessiērunt, lacessiēre
pluperfect lacessīveram, lacessieram lacessīverās, lacessierās lacessīverat, lacessierat lacessīverāmus, lacessierāmus lacessīverātis, lacessierātis lacessīverant, lacessierant
future perfect lacessīverō, lacessierō lacessīveris, lacessieris lacessīverit, lacessierit lacessīverimus, lacessierimus lacessīveritis, lacessieritis lacessīverint, lacessierint
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, lacessierim lacessīverīs, lacessierīs lacessīverit, lacessierit lacessīverīmus, lacessierīmus lacessīverītis, lacessierītis lacessīverint, lacessierint
pluperfect lacessīvissem, lacessiissem lacessīvissēs, lacessiissēs lacessīvisset, lacessiisset lacessīvissēmus, lacessiissēmus lacessīvissētis, lacessiissētis lacessīvissent, lacessiissent
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, lacessiisse lacessītūrum esse lacessī lacessītum esse lacessītum īrī
participles lacessēns lacessītūrus lacessītus lacessendus, lacessundus
verbal nouns gerund supine
genitive dative accusative ablative accusative ablative
lacessendī lacessendō lacessendum lacessendō 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 Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français, Hachette
  • 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