Etymologically

Etymology and origin of the Spanish word dudar

Confidence
Established
Formation
Inherited
First attested
c. 1200 Almerich, La fazienda de Ultra Mar, in a 13th-century copy More words from the 12th century
Inherited from
Latin dubito via Old Spanish
Ultimate origin
Latin dubitō
Etymology tree
inherited borrowed derived
Latin dubitō
French douter
Spanish dudar
Italian dubitare
From the same root
Latin addubitō ← dubitō
Latin dubitātiō ← dubitō
French doute ← douter

Pronunciation

  • /duˈdaɾ/, [d̪uˈð̞aɾ][1]

Forms

dudar (first-person singular present dudo, first-person singular preterite dudé, past participle dudado)[1] Old Spanish dubdar was the usual form until the 15th century;[2][3] dudar is found in 14th-century manuscripts, as in Juan Ruiz.[2][3] Leonese texts have a popular dobdar and the variants duldar and dultar, with the Leonese treatment of a /b/ before a consonant.[2][4]

Etymology

It is inherited from Old Spanish dubdar, inherited from Latin dubitō (“to waver, to doubt”), taken over at an early date.[2][3][5][1] The Latin verb comes from dubius (“wavering, doubtful”), itself from duo (“two”), after the two alternatives between which one doubts.[2][3] Wiktionary describes the Latin verb as probably a frequentative of the rare dubō, from Proto-Indo-European *dwi- (“two-”) and Proto-Indo-European *bʰuH- (“to be”).[1]

The same Latin verb is Portuguese duvidar, Galician dubidar, Catalan dubtar, Occitan dobtar, French douter and Italian dubitare.[4][6][2] Corominas finds it surprising that so basic a verb should be a learned word when the French and Occitan verbs are popular ones.[2] He considers whether the /u/ of the verb could come from the following /b/, through an earlier *doudar, which would make it inherited, but since the Italian, Catalan and Portuguese verbs are clearly semi-learned, he thinks the Castilian one probably is too.[2] A popular Old Leonese dobdar did exist, with the noun dolda in charters of 1272 and 1282.[2]

Earliest recorded meaning

The earliest hit in the CDH is in the Fazienda de Ultra Mar (c. 1200, in a 13th-century copy), with the sense “doubt, disbelieve”: Odio Jacob e dubdo en su coraçon e no los creye “Jacob heard it and doubted in his heart and did not believe them”.[7] Corominas and the BDELC date the first record to Berceo (1220–1250), as dubdar.[2][3]

Semantic evolution

Because Latin dubius could already mean “critical, dangerous”, the verb took the sense “to fear” in Romance.[2] This is usual in Gallo-Romance and was current throughout medieval Castilian, in Berceo, the Libro de Alexandre, Juan Ruiz and López de Ayala, and down to the early 17th century.[2][8] The transitive construction, which the other Romance languages lack, was common in the Golden Age even with a noun as object; today it is mostly limited to clauses (dudo que, dudo si) and the pronoun lo.[2][9]

The Diccionario de Autoridades explained that the older dubdar was closer to Latin and that usage had since dropped the b.[10] The Academy's 1884 edition defined it as being undecided between contrary judgements and, transitively, as giving little credit to what one hears.[11] The DLE now gives three senses: to be in doubt about something, to hesitate between choices, and to distrust someone.[5]

Timeline

  • c. 1200 – dubdo “he doubted” in the Fazienda de Ultra Mar, in a 13th-century copy.[7]
  • 1218–c. 1250 – dubdare in the Fuero de Zorita de los Canes, the first CDH hit without a later copy.[7]
  • 1220–1250 – Berceo uses dubdar, the first record for Corominas.[2][3]
  • c. 1250 – the Libro de Apolonio has dubdar in the senses “to hesitate” and “to fear”.[8]
  • 14th century – the form dudar in manuscripts of Juan Ruiz.[2]
  • 1513 – Nebrija gives Latin dubito and ambigo.[12]
  • 1726–1739 – the Diccionario de Autoridades notes that dubdar has given way to dudar.[10]
  • 1884 – the Academy's dictionary first gives the etymology, from Latin dubitare.[11]

Meanings

Verb

  1. (transitive) To doubt, to be uncertain about something: Lo dudé un buen rato antes de firmar.[5][1]
  2. (intransitive, also transitive) To hesitate between one course and another: Duda entre estudiar medicina o derecho.[5][13]
  3. (intransitive) To distrust or suspect someone or something: Nadie duda de su honradez.[5]

Word family

  • duda
  • dudoso
  • dudable
  • indudable

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o Corominas, Joan; Pascual, José A. (1980–1991), Diccionario crítico etimológico castellano e hispánico, 6 vols., Madrid: Gredos, p. 2, 527
  3. ^ a b c d e f Corominas, Joan (1973), Breve diccionario etimológico de la lengua castellana, 3rd ed., Madrid: Gredos, p. s.v. dudar
  4. ^ a b García de Diego, Vicente (1985), Diccionario etimológico español e hispánico, 2nd ed., Madrid: Espasa-Calpe (1st ed. 1954), p. s.v. dubitare
  5. ^ a b c d e 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. dudar
  6. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. s.v. dubitare
  7. ^ a b c Real Academia Española (2013–), Corpus del Diccionario histórico de la lengua española (CDH), version 3.1, https://apps.rae.es/CNDHE, p. s.v. dudar
  8. ^ a b Boggs, R. S.; Kasten, Lloyd; Keniston, Hayward; Richardson, H. B. (1946), Tentative Dictionary of Medieval Spanish, 2 vols., Chapel Hill, N.C., p. 200
  9. ^ Cuervo, Rufino José (1886–1893), Diccionario de construcción y régimen de la lengua castellana, vols. I–II (A–D), París: A. Roger y F. Chernoviz, p. 2, 1333
  10. ^ a b Real Academia Española (1726–1739), Diccionario de la lengua castellana (Diccionario de Autoridades), 6 vols., Madrid: Francisco del Hierro, p. 3, 346
  11. ^ a b Real Academia Española (1884), Diccionario de la lengua castellana, 12th ed., Madrid: Imprenta de D. Gregorio Hernando (the first Academy edition with etymologies), p. 402
  12. ^ Nebrija, Antonio de (1513), Vocabulario español-latino, Salamanca, ed. Marina Vidal Díez (2007), Biblioteca Virtual Miguel de Cervantes, p. 338
  13. ^ Moliner, María (2007), Diccionario de uso del español, 3rd ed., Madrid: Gredos, p. s.v. dudar

Related etymologies

Cite this entry

“Dudar.” Etymologically, 7 Nov. 2026, etymologically.com/es/dudar. Accessed 7 Nov. 2026.

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