Etymologically

iustifico

Etymology and origin of the Latin word iustifico

Confidence
Established
Formation
Compound
First attested
c. 160–220 AD, Tertullian
Ultimate origin
Latin iūstus,faciō
Etymology tree
inherited borrowed derived
Latin iustus
Italian giusto
French juste
Latin iustifico
From the same root
Dutch juist ← iustus
Latin iuste ← iustus
French justement ← juste

Pronunciation

  • Classical: [juːsˈtɪ.fɪ.koː][1]
  • Ecclesiastical: [jusˈtiː.fi.ko][1]

Forms

iūstificō (present infinitive iūstificāre, perfect active iūstificāvī, supine iūstificātum); first conjugation[1]

Etymology

It is from Latin iūstus (“just”) + faciō (“to make”).[2][1] Lewis & Short and Etymonline derive it from iūstificus “acting justly”.[3][4] Augustine explains that a sinner is justified when he is made just from unjust.[2]

Earliest recorded meaning

Tertullian uses it in Against Marcion for doing justice to a widow, and of a sinful woman made just by faith.[3][2][5]

Semantic evolution

It belongs to Christian Latin, from the Old Latin Bible on, and the Vulgate kept it, as in volēns iūstificāre sē ipsum, “wishing to justify himself”, in Luke.[2] Its central sense was to make or declare righteous, and in theology to justify a sinner by grace.[2][3][6] The poets Ausonius, Prudentius and Paulinus of Nola use it once each.[2]

In the Middle Ages it was also a legal word: to do justice to someone, to bring a person to justice or try them, to judge a crime or settle a case, to acquit, and to correct or set right.[7][8] Through Old French justifiier it became English justify.[4]

Timeline

  • c. 160–220 AD – Tertullian uses it of doing justice and of justification by faith.[3][2][5]
  • after 220 AD – The Old Latin Bible (Itala) uses it.[2][5]
  • 390–406 AD – The Vulgate uses it in Luke.[2][5]
  • 796 – Alcuin writes that the Holy Spirit justifies the soul by faith.[8]
  • 1101 – A royal charter uses it for bringing adversaries to justice.[8]
  • c. 1300 – English borrows it as justify, first “to administer justice”.[4]

Meanings

Verb

  1. (Late Latin) To act justly towards, do justice to.[3][2][1]
  2. (Ecclesiastical Latin) To make or declare righteous, justify; to absolve.[2][3][6]
  3. (Medieval Latin) To bring to justice, try; to judge.[7][8]
  4. (Medieval Latin) To acquit.[7]
  5. (Medieval Latin) To correct, set right.[7]

Word family

  • iūstificātiō
  • iūstificātor
  • iustificatrix

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 Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  3. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  7. ^ a b c d Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  8. ^ a b c d 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

“Iustifico.” Etymologically, 23 Oct. 2026, etymologically.com/la/iustifico. Accessed 23 Oct. 2026.

Last edited on . ·