Etymologically

Etymology and origin of the Spanish word plenario

Confidence
Established
Formation
Borrowing
First attested
c. 1450 Juan de Mena More words from the 15th century
Borrowed from
Latin plenarius
Ultimate origin
Latin plenus

Pronunciation

  • /pleˈnaɾjo/, [pleˈna.ɾjo][1]

Forms

plenario (feminine plenaria, masculine plural plenarios, feminine plural plenarias)[1]

Etymology

It is borrowed from Late Latin plenarius (“full, complete”), a learned word.[2][1][3] The Late Latin adjective is formed from plēnus (“full”) with the suffix -ārius.[1][4] In Medieval Latin it meant “entire, complete” and was used of a meeting attended by all; as a noun it named a missal or a book with the Gospels and Epistles.[5] Charters spoke of the Medieval Latin plenaria indulgentia “plenary indulgence”.[6]

The base adjective goes back to Proto-Italic *plēnos and to Proto-Indo-European *pl̥h₁nós (“full”), the source of Greek, Germanic and Slavic words for “full”.[1] The same Latin adjective is the source of the popular Spanish lleno and of the learned pleno.[7] Derivatives of it are Old French plenier and Old Occitan plenier “complete”, and the Latin word gave French plénier and English plenary.[8][4]

Earliest recorded meaning

Corominas's first record is in Juan de Mena, about 1450, after C. C. Smith.[7][3] In 1538 a Mexican text speaks of indulgencias plenarias “plenary indulgences”, and in 1551 a text from Panama of a plenario juizio “plenary trial”.[9]

Semantic evolution

Autoridades in 1737 gave three senses: “full, entire, lacking nothing”, with quotations about a complete pardon of sins; in law, the possessory action in which the parties' rights are examined more fully; and in criminal practice, the stage of a case after the summary, when witnesses are confirmed and the defence is heard, up to the sentence.[10] Terreros called the Latin plenarius a barbarous word.[11] The Academy first gave the etymology, from Latin plenarius, in 1899, and noted the noun use of the criminal sense.[12] Alemany in 1917 says that this stage survived then only in military justice.[13] Moliner notes that today the adjective is used mostly with indulgencia and with sesión or reunión, meaning “of all the members”; the DLE now also has the noun for a full meeting of a body, the same as pleno.[14][2]

Timeline

  • c. 1450 – Juan de Mena, the first record.[7][3]
  • 1491 – the Tostado's Libro de las paradojas, in a manuscript of about 1491–1500.[15]
  • 1538 – indulgencias plenarias in Mexico, the first record from the Americas.[9]
  • 1737 – Autoridades records the general, the civil and the criminal legal sense.[10]
  • 1899 – the Academy's dictionary gives the Latin etymon and the noun use.[12]
  • 1917 – Alemany limits the criminal sense to military justice.[13]

Meanings

Adjective

  1. Full, entire, complete, lacking nothing; plenary: La propuesta se votará en sesión plenaria.[2][14][1]

Noun

  1. A plenary meeting of a body, attended by all its members; pleno.[2][16][1]
  2. (law) The stage of criminal proceedings that follows the sumario up to the sentence, in which charges and defence are argued against each other.[2][16]

Usage notes

Set phrases are indulgencia plenaria “plenary indulgence”, absolución plenaria and juicio plenario, the possessory action of the old law.[2][14][10]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f Real Academia Española; Asociación de Academias de la Lengua Española (2014–), Diccionario de la lengua española, 23rd ed., online version 23.8, https://dle.rae.es, p. s.v. plenario
  3. ^ a b c Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. lleno
  4. ^ a b Segura Munguía, Santiago (2001), Nuevo diccionario etimológico latín-español y de las voces derivadas, Bilbao: Universidad de Deusto, p. 573
  5. ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill, p. s.v. plenarius
  6. ^ du Cange, Charles du Fresne, et al. (1883–1887), Glossarium mediae et infimae latinitatis, augmented ed. by Léopold Favre, Niort: L. Favre, p. 6, 370
  7. ^ a b c Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 3, 731
  8. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. s.v. plenus
  9. ^ a b Boyd-Bowman, Peter (2003), Léxico hispanoamericano 1493–1993, ed. Ray Harris-Northall and John J. Nitti, New York: Hispanic Seminary of Medieval Studies, p. s.v. plenario
  10. ^ a b c Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 5, 299
  11. ^ Terreros y Pando, Esteban de (1786–1793), Diccionario castellano con las voces de ciencias y artes y sus correspondientes de las tres lenguas francesa, latina e italiana, 4 vols., Madrid: Viuda de Ibarra, p. 3, 160
  12. ^ a b Real Academia Española (1899), Diccionario de la lengua castellana, 13th ed., Madrid: Imprenta de los Sres. Hernando y Compañía, p. 790
  13. ^ a b Alemany y Bolufer, José (1917), Diccionario de la lengua española, Barcelona: Ramón Sopena, p. 1338
  14. ^ a b c Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. plenario
  15. ^ Hispanic Seminary of Medieval Studies (2026), Old Spanish Textual Archive (OSTA): semi-paleographic transcriptions of Old Spanish texts, ed. Francisco Gago Jover et al., https://www.hispanicseminary.org, p. s.v. plenario
  16. ^ a b Battaner Arias, Paz (dir.) (2017), Diccionario general de la lengua española VOX, Barcelona: Larousse Editorial, p. s.v. plenario

Related etymologies

Cite this entry

“Plenario.” Etymologically, 7 Nov. 2026, etymologically.com/es/plenario. Accessed 7 Nov. 2026.

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