Etymologically

defendo

Etymology and origin of the Latin word defendo

Confidence
Probable
Formation
Derivation
First attested
c. 450 BC (Twelve Tables)
Ultimate origin
Proto-Indo-European (*gʷʰen-)

Pronunciation

  • IPA (Classical): [deːˈfɛn.doː][1]
  • IPA (Ecclesiastical): [deˈfɛn.do][1]

Forms

dēfendō (present infinitive dēfendere, perfect active dēfendī, supine dēfēnsum); third conjugation[1]

Etymology

It is from Latin dē- (“from, away”) + *fendō (“to strike”), a verb *fendere found only in compounds such as offendō.[2][3][4] The OLD derives *fendō from *gʷʰen-d(h)ō, from the root Proto-Indo-European *gʷʰen- (“to strike, kill”), and compares Sanskrit हन्ति (hánti, “strikes”), Ancient Greek φόνος (phónos, “murder”) and Old Irish gonaid (“wounds, kills”).[2][1] The TLL thinks its outside connections are not settled.[5]

Earliest recorded meaning

The Twelve Tables already use it of a man who defends himself with a weapon.[2] Köbler dates them to about 450 BC.[6] Ennius has “save the citizens, ward off the enemy”.[2]

Semantic evolution

Its first sense was to ward or fend off weapons, enemies, cold or heat.[2][3] From this it meant to act in defence of a person or place, to protect from harm, to plead for someone in court, and to uphold or justify an opinion or action.[2] Döderlein distinguishes dēfendere, protecting against an actual attack, from tuērī, guarding against possible danger.[7]

It survives in Italian difendere, French défendre and Spanish defender, and through Old French defendre English defend is recorded in the mid-13th century.[1][4]

Timeline

  • c. 450 BC – The Twelve Tables use it of a man defending himself with a weapon.[2][6]
  • 204–169 BC – Ennius uses it of warding off the enemy.[2][6]
  • 81–43 BC – Cicero uses it of pleading for someone in court.[2][6]
  • mid-13th century – English defend is recorded.[4]

Meanings

Verb

  1. To ward off, fend off.[2]
  2. To defend, protect.[2]
  3. To protect from harm (fire, weather, etc.).[2]
  4. To speak in defence of, plead for (in court).[2]
  5. To uphold, justify (an opinion or action).[2]

Word family

  • dēfēnsa
  • defensibilis
  • dēfēnsiō
  • dēfēnsō
  • dēfēnsor
  • dēfenstrix
  • indēfēnsus
  • dēfēnsitō

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  4. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  6. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  7. ^ Döderlein, Ludwig (1874), Döderlein’s Hand-book of Latin Synonymes, tr. H. H. Arnold, Andover: W. F. Draper
Cite this entry

“Defendo.” Etymologically, 16 Oct. 2026, etymologically.com/la/defendo. Accessed 16 Oct. 2026.

Last edited on . ·