See also: Scio and sciò





scio ‎(uncountable, accusative scion)

  1. knowledge




From Proto-Italic *skijō, from Proto-Indo-European *skey- ‎(to distinguish, to dissect).



sciō ‎(present infinitive scīre, perfect active scīvī, supine scītum); fourth conjugation

  1. I can, know, understand, have knowledge.
    Scisne ubi habitemus?
    Do you know where we live?
  2. I know carnally.


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  • The third and fourth principal parts are shared with scīscō.
  • Irregular forms are commonly encountered in early Latin, especially in the imperfect and future tenses.
  • The regular present imperatives, scī and scīte, are almost never encountered, with the regular second person future imperative forms scīto and scītōte being used instead.
   Conjugation of scio (fourth conjugation)
indicative singular plural
first second third first second third
active present sciō scīs scit scīmus scītis sciunt
imperfect sciēbam sciēbās sciēbat sciēbāmus sciēbātis sciēbant
future sciam sciēs sciet sciēmus sciētis scient
perfect scīvī scīvistī scīvit scīvimus scīvistis scīvērunt, scīvēre
pluperfect scīveram scīverās scīverat scīverāmus scīverātis scīverant
future perfect scīverō scīveris scīverit scīverimus scīveritis scīverint
passive present scior scīris, scīre scītur scīmur scīminī sciuntur
imperfect sciēbar sciēbāris, sciēbāre sciēbātur sciēbāmur sciēbāminī sciēbantur
future sciar sciēris, sciēre sciētur sciēmur sciēminī scientur
perfect scītus + present active indicative of sum
pluperfect scītus + imperfect active indicative of sum
future perfect scītus + future active indicative of sum
subjunctive singular plural
first second third first second third
active present sciam sciās sciat sciāmus sciātis sciant
imperfect scīrem scīrēs scīret scīrēmus scīrētis scīrent
perfect scīverim scīverīs scīverit scīverīmus scīverītis scīverint
pluperfect scīvissem scīvissēs scīvisset scīvissēmus scīvissētis scīvissent
passive present sciar sciāris, sciāre sciātur sciāmur sciāminī sciantur
imperfect scīrer scīrēris, scīrēre scīrētur scīrēmur scīrēminī scīrentur
perfect scītus + present active subjunctive of sum
pluperfect scītus + imperfect active subjunctive of sum
imperative singular plural
first second third first second third
active present scī scīte
future scītō scītō scītōte sciuntō
passive present scīre scīminī
future scītor scītor sciuntor
non-finite forms active passive
present perfect future present perfect future
infinitives scīre scīvisse scītūrus esse scīrī scītus esse scītum īrī
participles sciēns scītūrus scītus sciendus
verbal nouns gerund supine
nominative genitive dative/ablative accusative accusative ablative
scīre sciendī sciendō sciendum scītum scītū

Derived termsEdit



  • scio in Charlton T. Lewis & Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • scio in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • scio” in Félix Gaffiot (1934), Dictionnaire Illustré Latin-Français, Paris: Hachette.
  • Meissner, Carl; Auden, Henry William (1894) Latin Phrase-Book[1], London: Macmillan and Co.
    • I know for a fact: certo (certe) scio (Arch. 12. 32)
    • I know very well: probe scio, non ignoro
    • as far as I know: quantum scio
    • as far as I know: quod sciam
    • we know from experience: experti scimus, didicimus
    • to have received a liberal education: litteras scire
    • to know Latin: latinam linguam scire or didicisse
    • to know Latin: latine scire