Etymologically

inaccessibilis

Etymology and origin of the Latin word inaccessibilis

Confidence
Established
Formation
Derivation
First attested
150–200 Porphyrio
Ultimate origin
Latin accessibilis
Etymology tree
inherited borrowed derived
Latin cēdō
French céder
English cede
Spanish ceder
Latin accēdō
English accede
Latin accessibilis
English accessible
Latin inaccessibilis
English inaccessible
Spanish inaccesible
From the same root
English recede ← cēdō
Latin abscēdō ← cēdō
Latin antecēdō ← cēdō
Latin cessiō ← cēdō
Latin cessō ← cēdō
Latin concēdō ← cēdō
Latin dēcēdō ← cēdō
Latin discēdō ← cēdō
Latin excēdo ← cēdō
Latin incēdō ← cēdō
Latin intercēdō ← cēdō
Latin necesse ← cēdō
Latin praecēdō ← cēdō
Latin prōcēdō ← cēdō
Latin recēdō ← cēdō
Latin sēcēdō ← cēdō
Latin succēdō ← cēdō
Spanish proceder ← cēdō
Latin accessiō ← accēdō
Latin accessus ← accēdō
English accessibility ← accessible

Pronunciation

  • Classical: [ɪ.nak.kɛsˈsɪ.bɪ.lɪs][1]
  • Ecclesiastical: [i.nat.t͡ʃesˈsiː.bi.lis][1]

Forms

inaccessibilis (neuter inaccessibile); third-declension two-termination adjective[1]

Etymology

It is from Latin in-2 (“not”) + accessibilis (“approachable”).[2][1][3]

Earliest recorded meaning

Georges and Köbler give Porphyrio's commentary on Horace as the first source, meaning unapproachable.[4][5]

Semantic evolution

It is a post-classical word for places that cannot or may not be approached,[6][2] found in the Latin panegyrics, Tertullian, Servius and Augustine.[6][7][8] Christian writers took it up, and it was used of light with reference to the First Epistle to Timothy.[9][4]

In Medieval Latin it meant impassable or unattainable, of places, people, things and ideas.[10][11][9] Through Old French it gave English inaccessible.[3]

Timeline

  • 2nd half of the 2nd century AD – Porphyrio uses it in his commentary on Horace.[4][5]
  • c. 160–220 AD – Tertullian uses it.[6][7][5]
  • c. 400 AD – Servius uses it in his commentary on the Aeneid.[6][7][5]
  • 354–430 AD – Augustine uses it in a letter.[8][5]
  • early 15th century – English borrows it as inaccessible.[3]

Meanings

Adjective

  1. Unapproachable, inaccessible.[6][4][7]
  2. (Medieval Latin) Impassable, unattainable; remote.[10][11]

Usage notes

In Medieval Latin it is also spelled inadcessibilis.[11]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  3. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c d Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  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 Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  8. ^ a b Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  9. ^ a b 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
  10. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  11. ^ a b c Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften

Borrowed into

Cite this entry

“Inaccessibilis.” Etymologically, 7 Nov. 2026, etymologically.com/la/inaccessibilis. Accessed 7 Nov. 2026.

Last edited on . ·