Etymology and origin of the Latin word iustifico
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
- (Late Latin) To act justly towards, do justice to.[3][2][1]
- (Ecclesiastical Latin) To make or declare righteous, justify; to absolve.[2][3][6]
- (Medieval Latin) To bring to justice, try; to judge.[7][8]
- (Medieval Latin) To acquit.[7]
- (Medieval Latin) To correct, set right.[7]
Word family
- iūstificātiō
- iūstificātor
- iustificatrix
Related words
- iūstificus
- English justify
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ 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
- ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ a b c d Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
- ^ 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 . ·