Etymologically

testamentum

Etymology and origin of the Latin word testamentum

Confidence
Established
Formation
Derivation
First attested
c. 250–184 BC, Plautus
Ultimate origin
Proto-Indo-European (*trito-sth₂-o-)
Etymology tree
inherited borrowed derived
Latin testor
Latin testamentum
English testament

Pronunciation

  • Classical: [tɛs.taːˈmɛn.tũː][1]
  • Ecclesiastical: [tes.taˈmɛn.tum][1]

Forms

testāmentum n (genitive testāmentī); second declension[1]

Etymology

It is formed from Latin testor (“to call to witness, make a will”) + -mentum.[2][1][3] De Vaan derives testor from testis (“witness”), which he traces to Proto-Italic *tri-sto- and Proto-Indo-European *trito-sth₂-o- (“standing by as a third”).[4] The Christian sense comes from its use to render Ancient Greek διαθήκη (diathḗkē, “covenant; will”).[1][5]

Earliest recorded meaning

De Vaan dates it from Plautus,[4] and the OLD's first example is in Plautus' Asinaria.[2] Köbler first records it in Cicero.[6]

Semantic evolution

Testāmentum is a will, the last declaration of what one wants done after one's death, as Gellius defines it.[2][3] Apuleius makes a joke of it, as if from testis “testicle”.[2]

In Christian Latin it renders the Greek word for “covenant”, and so names the covenant of God, and the Old and New Testaments, Vetus and Novum Testāmentum, and the Bible.[5][1] In medieval Latin it was also a deed of gift to take effect at death, any written deed, and a royal diploma.[7]

Timeline

  • c. 250–184 BC – Plautus uses it.[2][4][6]
  • 81–43 BC – Cicero uses it.[6]
  • c. 165 AD – Gellius defines it.[3][6]
  • c. 125–175 AD – Apuleius jokes on testis.[2][6]

Meanings

Noun

  1. A will, testament.[2][3][1][5]
  2. (humorous) The testicles.[2]
  3. (Ecclesiastical Latin) A covenant; the Old or New Testament; the Bible.[5][1]
  4. (Medieval Latin) A deed of gift at death; any written deed; a royal diploma.[7]

Word family

  • testamentārius

References

  1. ^ a b c d e f g h Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ a b c 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 Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  6. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  7. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill

Borrowed into

Cite this entry

“Testamentum.” Etymologically, 18 Oct. 2026, etymologically.com/la/testamentum. Accessed 19 Oct. 2026.

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