Etymologically

intestabilis

Etymology and origin of the Latin word intestabilis

Confidence
Established
Formation
Derivation
First attested
c. 450 BC, Twelve Tables
Ultimate origin
Latin testis
Etymology tree
inherited borrowed derived
Latin testor
Latin intestabilis
From the same root
Latin detestor ← testor
Latin testamentum ← testor
Latin testatus ← testor

Pronunciation

  • Classical: [ɪn.tɛsˈtaː.bɪ.lɪs][1]
  • Ecclesiastical: [in.tesˈtaː.bi.lis][1]

Forms

intestābilis (neuter intestābile); third-declension two-termination adjective[1]

Etymology

It is from Latin in- (“not”) + testor (“to call to witness, make a will”) + -bilis,[2][3] or in- and testābilis.[1] The verb comes from testis (“witness”),[4] which de Vaan traces to Proto-Italic *tri-sto-, originally the “third standing by”.[4] It has a cognate in Oscan trstus (“witnesses”).[4]

Earliest recorded meaning

It goes back to the Twelve Tables,[4][5] which declared that whoever had been a witness or scale-holder at a transaction and then refused to testify was improbus intestābilisque, dishonest and disqualified.[2]

Semantic evolution

The legal sense was that such a person could not call witnesses, give evidence or make a will;[2][6] the jurists in the Digest still use it so, of a man condemned for a libellous poem, who could neither make a will nor be a witness to one.[6][7]

From disgrace in law it passed to disgrace in general: Sallust calls a man improbus intestābilisque who valued a life of shame above his good name,[2] and it means infamous or detestable in Horace, Livy (of perjury), Pliny the Elder (of magic) and Tacitus, who also has the comparative.[8][7] Plautus puns on it with testis “testicle”.[8][9]

Medieval Latin kept both uses: a charter of 1151 has it of one not fit to be a witness, and others of people who may not make a will or inherit by one;[10] a papal letter of 1317 declares certain vassals so disqualified.[11]

Timeline

  • c. 450 BC – The Twelve Tables disqualify a witness who refuses to testify.[2][5]
  • 86–34 BC – Sallust uses it of a shameful man.[2][5]
  • 98–115 AD – Tacitus uses it of what is detestable.[7][5]
  • 140–180 AD – Gaius uses it of one who cannot give evidence.[7][5]
  • 1151 – A charter uses it of one unfit to be a witness.[10]

Meanings

Adjective

  1. (law) Disqualified from being a witness or calling witnesses, and so from making a will.[2][6][9]
  2. Infamous, shameful, detestable.[2][6]

Usage notes

Georges and Gaffiot list a second intestābilis made from testis “testicle”, “without testicles”, which Plautus uses in a double sense with this word.[8][7][6]

References

  1. ^ a b c d 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. ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c d 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 e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b c d e Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  8. ^ a b c Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  9. ^ a b Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  10. ^ a b Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  11. ^ 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

“Intestabilis.” Etymologically, 21 Oct. 2026, etymologically.com/la/intestabilis. Accessed 23 Oct. 2026.

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