Etymologically

decido

Etymology and origin of the Latin word decido

Confidence
Established
Formation
Compound
First attested
Plautus
Ultimate origin
Proto-Indo-European (*keh₂id-)

Pronunciation

  • IPA (Classical): [deːˈkiː.doː][1]
  • IPA (Ecclesiastical): [deˈt͡ʃiː.do][1]

Forms

dēcīdō (present infinitive dēcīdere, perfect active dēcīdī, supine dēcīsum); third conjugation[1]

Etymology

It is from Latin dē- + caedō (“to cut”), with the vowel weakened in the compound.[2][3][1] The verb is inherited from Proto-Italic *kaid-e/o-, inherited from Proto-Indo-European *keh₂id- (“to strike, cut”).[4]

Earliest recorded meaning

It is found from Plautus onwards,[5] who uses it of cutting off a neck and, figuratively, of cutting short a trick.[2][6]

Semantic evolution

It meant to cut off, as Cato's olive cuttings and Tacitus' ears, and to reduce by cutting, as Horace's “humbled with clipped wings”.[2][3] It meant to mark out by notches, and in law to flog thoroughly.[2]

Figuratively it meant to settle or decide a matter, and with cum to come to terms with someone, as Cicero's settlement with Chrysogonus, damnum decidere was to agree on the penalty.[2] English decide came from it through Old French in the late 14th century, first “to settle a dispute”.[7]

Timeline

  • c. 250–184 BC – Plautus uses it of cutting off.[2][6][5]
  • 234–149 BC – Cato uses it of olive cuttings.[2][5]
  • 81–43 BC – Cicero uses it of coming to terms.[2][5]
  • late 14th century – English decide is recorded.[7]

Meanings

Verb

  1. To cut off, cut out.[2][1]
  2. To reduce by cutting, clip.[2][1]
  3. To mark out by notching.[2]
  4. To flog thoroughly.[2][1]
  5. To settle, decide, damnum decidere: to agree on a penalty.[2][1]
  6. (intransitive) To come to terms.[2]

Word family

  • dēcīsiō
  • dēcīsus

Usage notes

A different verb dēcidō, dēcidere, with a short i, comes from cadō and means “to fall down”, as Plautus' “I fall headlong from the couch”.[2][1]

References

  1. ^ a b c d e f g h i Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  4. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com

Related etymologies

  • opus · also from Proto-Indo-European
  • albus · also from Proto-Indo-European
  • potis · also from Proto-Indo-European
  • salvus · also from Proto-Indo-European
  • socius · also from Proto-Indo-European
  • signum · also from Proto-Indo-European
  • frater · also from Proto-Indo-European
  • foedus · also from Proto-Indo-European
Cite this entry

“Decido.” Etymologically, 15 Oct. 2026, etymologically.com/la/decido. Accessed 15 Oct. 2026.

Last edited on . ·