Etymologically

Etymology and origin of the Latin word descisco

Confidence
Established
Formation
Derivation
First attested
81–43 BC, Cicero
Ultimate origin
Proto-Indo-European (*skh₁-i-)

Pronunciation

  • Classical: [deːsˈkiːs.koː][1]
  • Ecclesiastical: [deʃˈʃis.ko][1]

Forms

dēscīscō (present infinitive dēscīscere, perfect active dēscīvī or dēsciī, supine dēscītum); third conjugation, no passive[1]

Etymology

It is formed from dē- (“away from”) and scīscō (“to get to know, decree”).[2][3] Lewis and Short take it to be first a political term, to break away by formal decision.[4] De Vaan derives ⟨scīscō⟩ from sciō (“to know”), which he traces to Proto-Italic *skije/o- and Proto-Indo-European *skh₁-i- (“to incise”), “to know” having come from “to distinguish, decide”.[5]

Earliest recorded meaning

The OLD's earliest quotation is Cicero, of champions of the state who desert it if they are fickle.[2]

Semantic evolution

It is to defect from an allegiance, revolt or desert, as Caesar's distant states that fall away from Afranius; with ad it is to go over to someone, as Livy's Praeneste that went over from the Latins to the Romans.[2][4] It is also to abandon a principle or model, as Cicero's “I have not been untrue to myself”, and to fall away from a quality or state, as the elder Seneca's Scipio falling short of his ancestors.[2][1] Columella uses it of a vine that degenerates.[2]

Church Latin glosses it “withdraw, sever”.[6]

Timeline

  • 81–43 BC – Cicero of fickle champions and of being true to oneself.[2][7]
  • c. 50 BC – Caesar of states falling away.[4][7]
  • 59 BC–17 AD – Livy of a city going over to Rome.[4][7]
  • 1st century AD – Columella of a degenerating vine.[2][7]

Meanings

Verb

  1. To defect, revolt, desert; with ad, to go over to.[2][4][1]
  2. To abandon a principle; to be unfaithful to.[2][1][6]
  3. To fall away from a quality; of plants, to degenerate.[2][1]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  6. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  7. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Descisco.” Etymologically, 19 Oct. 2026, etymologically.com/la/descisco. Accessed 19 Oct. 2026.

Last edited on . ·