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defensivus

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Etymology and origin of the Latin word defensivus

Confidence
Established
Formation
Derivation
First attested
1020–1087, Constantine the African
Ultimate origin
Latin defendo
Etymology tree
inherited borrowed derived
Latin defendo
French défendre
Italian difendere
Latin defensivus
From the same root
Latin defensa ← defendo
Latin defensio ← defendo
Latin defenso ← defendo

Pronunciation

  • Classical: [deː.fẽːˈsiː.wʊs][1]
  • Ecclesiastical: [de.fenˈsiː.vus][1]

Forms

dēfēnsīvus (feminine dēfēnsīva, neuter dēfēnsīvum); first/second-declension adjective[1]

Etymology

It is from Latin dēfendō (“to ward off, defend”),[2][1] a Medieval Latin formation[1] on its past participle stem ⟨dēfēns-⟩[3] with the suffix -īvus.[1]

Earliest recorded meaning

Köbler and the MLW record it first in Constantine the African (1020–1087), who calls the membranes over the brain protective of it.[2][4]

Semantic evolution

Besides its medical use, it meant “protecting” in general, as in Albertus Magnus,[4] and “serving for defence”, of a building,[4] of arms, of a doublet or corslet, and of walls and towers.[5] British documents oppose arma defensiva, defensive arms, to invasiva, those for attack.[5] In medicine the neuter was used as a noun for a remedy that checks growth.[4] English defensive comes from it, partly through Old French, and as a noun first meant medicines.[3]

Timeline

  • 1020–1087 – Constantine the African uses it in medicine.[2][4]
  • 13th century – Albertus Magnus calls a power “protective”.[4][2]
  • c. 1400 – English borrows it as defensive.[3]
  • 1403 – A British document distinguishes defensive arms from those for attack.[5]
  • 1426 – A will leaves a long defensive doublet of velvet.[5]

Meanings

Adjective

  1. (Medieval Latin) Protective, defending.[4][1]
  2. (Medieval Latin) Defensive, serving for defence (of arms, armour or fortifications).[4][5]
  3. (Medieval Latin, medicine) Protecting a part of the body; preventive.[4][5][1]

Noun

  1. (Medieval Latin, medicine) A remedy that checks growth.[4]

References

  1. ^ a b c d e f g h Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  3. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c d e f g h i j Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  5. ^ a b c d e f Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
Cite this entry

“Defensivus.” Etymologically, 24 Oct. 2026, etymologically.com/la/defensivus. Accessed 24 Oct. 2026.

Last edited on . ·