sciō

sc-iō 'Ich kann, weiß, verstehe'.

Latin

Etymology

From Proto-Italic *skijō, from Proto-Indo-European *skey- (“to distinguish, dissect”). Related to secō (“to cut off”), signum (“a sign”), Ancient Greek σχίζω (skhízō, “to split”) and English shit.

Pronunciation

• (Classical) IPA^(key): /ˈski.oː/, [ˈs̠kioː]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈʃi.o/, [ˈʃiːo]

Verb

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

1. to be able to, to know (how to do), understand, to have practical knowledge [ synonyms, antonyms ▲]

   Synonyms: agnōscō, cognōscō, inveniō, sentiō, cōnsciō, sapiō, nōscō, scīscō, intellegō, percipiō, discernō, tongeō, cernō, audiō

   Antonyms: ignōrō, nesciō

   Scīsne ubi habitēmus? ― Do you know where we live?

2. (euphemistic) to know carnally

Conjugation

• Used with adverb, accusative, or ablative
• The third and fourth principal parts are shared with scīscō.
• The regular present imperatives, scī and scīte, are almost never encountered, with the regular second person future imperative forms scītō and scītōte being used instead.
• Irregular forms are commonly encountered in early Latin, especially in the imperfect and future tenses.
  • syncopated perfect forms: scīsse (= scīvisse), scīstī (= scīvistī), scīrint (= scīverint)
  • archaic imperfect forms: scībam, scībās, scībat, *scībāmus, scībātis, scībant (= sciēbam etc.)
  • archaic future forms: scībō, scībis, scībit, scībimus, *scībitis, scībunt (= sciam etc.), passive scībitur
  • Contraction scīn (or scīn') for scīsne (scīs + -ne)