Etymologically

cotidianus

Etymology and origin of the Latin word cotidianus

Confidence
Established
Formation
Derivation
First attested
c. 250–184 BC, Plautus
Ultimate origin
Latin (quotus,diēs)

Pronunciation

  • Classical: [kɔ.tiː.diˈaː.nʊs], [koː.tiː.diˈaː.nʊs][1]
  • Ecclesiastical: [ko.ti.diˈaː.nus], [ko.ti.diˈaː.nus][1]

Forms

cotīdiānus (feminine cotīdiāna, neuter cotīdiānum); first/second-declension adjective[1] It is also spelled cottīdiānus and quotīdiānus.[2] Martial scans it cōtīdiānus.[2]

Etymology

It is formed from Latin cottīdiē (“every day”) + -ānus.[2][1] The adverb is from quotus (“which in number”) and diēs (“day”).[2]

Earliest recorded meaning

Plautus, Trinummus: “Pax, that is my name; this one is the everyday one” (hoc cottīdiānumst).[2][3]

Semantic evolution

It is daily, happening or used every day, and of fevers quotidian, Afranius sets the daily round against feast days.[2] It is also habitual or normal, and of things such as one meets every day, ordinary or commonplace, as Terence's young man tired of everyday beauties.[2] Church Latin glosses it “daily”.[4] In Medieval Latin it is said of someone owing daily service to a lord or attached to his household.[5]

Timeline

  • c. 250–184 BC – Plautus in the sense “usual”.[2][3]
  • 190–159 BC – Terence in the sense “ordinary”.[2][3]
  • second half of the 2nd century BC – Afranius in the sense “daily”.[2][3]

Meanings

Adjective

  1. Daily, (of fevers) quotidian.[2][1][4]
  2. Habitual, usual, normal.[2]
  3. Ordinary, commonplace.[2][1]
  4. (Medieval Latin) Owing daily service to a lord.[5]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  4. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  5. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
Cite this entry

“Cotidianus.” Etymologically, 18 Oct. 2026, etymologically.com/la/cotidianus. Accessed 19 Oct. 2026.

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