From Proto-Indo-European *h₂erk-. Cognates include Old Armenian արգել ‎(argel, obstacle) and Ancient Greek ἀρκέω ‎(arkéō), ἄλαλκε ‎(álalke, to ward or keep off), ἀλκή ‎(alkḗ, prowess, courage, boldness), ἄλκιμος ‎(álkimos, strong), ἀλέξω ‎(aléxō, to ward or keep off), whence the bases for Ἀλκείδης ‎(Alkeídēs, strong, mighty, descendant of Alceus) (the name of Herakles/ Hercules) and Ἀλέξανδρος ‎(Aléxandros, defending men). See also Latin ulciscor.



arceō ‎(present infinitive arcēre, perfect active arcuī, supine arcitum); second conjugation

  1. I shut up, enclose; box in.
  2. I keep off, ward off.
  3. I defend, protect (from).


   Conjugation of arceo (second conjugation)
indicative singular plural
first second third first second third
active present arceō arcēs arcet arcēmus arcētis arcent
imperfect arcēbam arcēbās arcēbat arcēbāmus arcēbātis arcēbant
future arcēbō arcēbis arcēbit arcēbimus arcēbitis arcēbunt
perfect arcuī arcuistī arcuit arcuimus arcuistis arcuērunt, arcuēre
pluperfect arcueram arcuerās arcuerat arcuerāmus arcuerātis arcuerant
future perfect arcuerō arcueris arcuerit arcuerimus arcueritis arcuerint
passive present arceor arcēris, arcēre arcētur arcēmur arcēminī arcentur
imperfect arcēbar arcēbāris, arcēbāre arcēbātur arcēbāmur arcēbāminī arcēbantur
future arcēbor arcēberis, arcēbere arcēbitur arcēbimur arcēbiminī arcēbuntur
perfect arcitus + present active indicative of sum
pluperfect arcitus + imperfect active indicative of sum
future perfect arcitus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present arceam arceās arceat arceāmus arceātis arceant
imperfect arcērem arcērēs arcēret arcērēmus arcērētis arcērent
perfect arcuerim arcuerīs arcuerit arcuerīmus arcuerītis arcuerint
pluperfect arcuissem arcuissēs arcuisset arcuissēmus arcuissētis arcuissent
passive present arcear arceāris, arceāre arceātur arceāmur arceāminī arceantur
imperfect arcērer arcērēris, arcērēre arcērētur arcērēmur arcērēminī arcērentur
perfect arcitus + present active subjunctive of sum
pluperfect arcitus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present arcē arcēte
future arcētō arcētō arcētōte arcentō
passive present arcēre arcēminī
future arcētor arcētor arcentor
non-finite forms active passive
present perfect future present perfect future
infinitives arcēre arcuisse arcitūrus esse arcērī arcitus esse arcitum īrī
participles arcēns arcitūrus arcitus arcendus
verbal nouns gerund supine
nominative genitive dative/ablative accusative accusative ablative
arcēre arcendī arcendō arcendum arcitum arcitū

Derived termsEdit

Related termsEdit


  • arceo” in Charlton T. Lewis & Charles Short, A Latin Dictionary, Oxford: Clarendon Press, 1879.
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