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From per ‎(through, along; during) + faciō ‎(do, make).



perficiō ‎(present infinitive perficere, perfect active perfēcī, supine perfectum); third conjugation iō-variant

  1. I achieve, execute, carry out, accomplish, perform, despatch, finish, complete; establish; perfect.
  2. (by extension) I bring about, cause, effect.


   Conjugation of perficio (third conjugation -variant)
indicative singular plural
first second third first second third
active present perficiō perficis perficit perficimus perficitis perficiunt
imperfect perficiēbam perficiēbās perficiēbat perficiēbāmus perficiēbātis perficiēbant
future perficiam perficiēs perficiet perficiēmus perficiētis perficient
perfect perfēcī perfēcistī perfēcit perfēcimus perfēcistis perfēcērunt, perfēcēre
pluperfect perfēceram perfēcerās perfēcerat perfēcerāmus perfēcerātis perfēcerant
future perfect perfēcerō perfēceris perfēcerit perfēcerimus perfēceritis perfēcerint
passive present perficior perficeris, perficere perficitur perficimur perficiminī perficiuntur
imperfect perficiēbar perficiēbāris, perficiēbāre perficiēbātur perficiēbāmur perficiēbāminī perficiēbantur
future perficiar perficiēris, perficiēre perficiētur perficiēmur perficiēminī perficientur
perfect perfectus + present active indicative of sum
pluperfect perfectus + imperfect active indicative of sum
future perfect perfectus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present perficiam perficiās perficiat perficiāmus perficiātis perficiant
imperfect perficerem perficerēs perficeret perficerēmus perficerētis perficerent
perfect perfēcerim perfēcerīs perfēcerit perfēcerīmus perfēcerītis perfēcerint
pluperfect perfēcissem perfēcissēs perfēcisset perfēcissēmus perfēcissētis perfēcissent
passive present perficiar perficiāris, perficiāre perficiātur perficiāmur perficiāminī perficiantur
imperfect perficerer perficerēris, perficerēre perficerētur perficerēmur perficerēminī perficerentur
perfect perfectus + present active subjunctive of sum
pluperfect perfectus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present perfice perficite
future perficitō perficitō perficitōte perficiuntō
passive present perficere perficiminī
future perficitor perficitor perficiuntor
non-finite forms active passive
present perfect future present perfect future
infinitives perficere perfēcisse perfectūrus esse perficī perfectus esse perfectum īrī
participles perficiēns perfectūrus perfectus perficiendus
verbal nouns gerund supine
nominative genitive dative/ablative accusative accusative ablative
perficere perficiendī perficiendō perficiendum perfectum perfectū

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