Etymologically

adiectivus

Etymology and origin of the Latin word adiectivus

Confidence
Established
Formation
Derivation, Calque
First attested
c. 362 Charisius More words from the 4th century
Ultimate origin
Latin adiciō
Etymology tree
inherited borrowed derived
Latin iaciō
Latin adiciō
Latin adiectīvus
English adjective
From the same root
Latin abiciō ← iaciō
Latin amiciō ← iaciō
Latin circumiciō ← iaciō
Latin coniciō ← iaciō
Latin dēiciō ← iaciō
Latin disiciō ← iaciō
Latin ēiciō ← iaciō
Latin iactō ← iaciō
Latin iactūra ← iaciō
Latin iactus ← iaciō
Latin iaculum ← iaciō
Latin iniciō ← iaciō
Latin intericiō ← iaciō
Latin obiciō ← iaciō
Latin prōiciō ← iaciō
Latin reiciō ← iaciō
Latin subiciō ← iaciō
Latin trāiciō ← iaciō
Spanish objeto ← iaciō
Latin adiectiō ← adiciō

Pronunciation

  • Classical: [ad.jɛkˈtiː.wʊs][1]
  • Ecclesiastical: [ad.jekˈtiː.vus][1]

Forms

adiectīvus (feminine adiectīva, neuter adiectīvum); first/second-declension adjective[1]

Etymology

It is formed from Latin adiciō (“to add, attach”) + -īvus, on the stem of the past participle adiectus,[1][2] as a calque of Ancient Greek ἐπιθετικός (epithetikós).[1]

Earliest recorded meaning

It first appears in the grammarian Charisius (about AD 362), who says that the prefix in- sometimes adds force, as in inpotens “very powerful”.[2][3]

Semantic evolution

Priscian used it of qualities and expressions added to a noun, and the neuter nomen adiectivum, or adiectivum alone, became the name of the adjective as opposed to the substantive.[2][4][5] Macrobius already has the neuter noun.[5]

In medieval Latin it kept the grammatical sense and also meant added or additional, fictitious, and accidental as opposed to essential;[6][7] Thomas Aquinas set the adjective, which places its meaning on a subject, against the substantive.[8] Köbler finds it in the Lex Salica.[3] Copernicus used it in mathematics for quantities to be added.[9] Conte derives Italian aggettivo from it.[5]

Timeline

  • c. 362 AD – Charisius uses it in grammar.[2][3]
  • first half of the 5th century AD – Macrobius uses the neuter adiectivum for an adjective.[5][3]
  • 6th century AD – Priscian uses nomen adiectivum and related phrases.[2][3]
  • third quarter of the 8th century – It is found in the Lex Salica.[3]

Meanings

Adjective

  1. Added, additional.[1][7][4]
  2. (grammar) Added to a noun, adjectival;[10][2][4] nomen adiectivum, or the neuter adiectivum alone, an adjective.[10][2][4]
  3. (Medieval Latin) Fictitious, made up.[6]
  4. (Medieval Latin, philosophy) Accidental, not essential.[6]

Word family

  • adiectīvālis
  • adiectīvum

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  3. ^ a b c d e f Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  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 Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  6. ^ a b c Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  7. ^ 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
  8. ^ Schütz, Ludwig (1895), Thomas-Lexikon, 2nd ed., Paderborn: F. Schöningh
  9. ^ Lexicon mediae et infimae Latinitatis Polonorum (1953–), Kraków: Instytut Języka Polskiego PAN; electronic ed. elexicon.scriptores.pl
  10. ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
Cite this entry

“Adiectivus.” Etymologically, 7 Nov. 2026, etymologically.com/la/adiectivus. Accessed 8 Nov. 2026.

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