Etymologically

Etymology and origin of the Romanian word coi

Confidence
Established
Formation
Inherited
First attested
1592–1604 More words from the 16th century
Inherited from
Latin coleus
Ultimate origin
Latin cōleus
Etymology tree
inherited borrowed derived
Latin cōleus
Romanian coi

Pronunciation

Forms

coi n (plural coaie)[1]

Etymology

It is inherited from Latin cōleus (“testicle”).[2][3][4][5][6] Wiktionary sets a Vulgar Latin neuter *coleum between the two, made neuter because testicles come in pairs, hence the Romanian neuter.[1] It survives in two other branches: Aromanian col'u, plural ⟨coal'e⟩, and Istro-Romanian col'e.[3][7] The Romance cognates are Italian coglia, Occitan colh, Old French coil and its modern form French couille, and Spanish cojón.[3][8] Ciorănescu compares Albanian kulje (“hernia”).[3]

Earliest recorded meaning

DELR's first record is from 1592–1604.[2] Tiktin cites a document of 1621 and the Bible of 1688, whose list of bodily defects in Leviticus includes „să fie cu un coiu” “that he has one testicle”.[5][9]

Semantic evolution

Besides the anatomical sense the word names the sliding weight of a steelyard, and with the plural coiuri a rubber ball.[2][3] Used familiarly as a masculine noun or adjective it means a bold, energetic man, and cu coaie is “uncastrated”.[6] Its derivatives are old: coișor appears in a personal name in 1621, coian “a man with large testicles” c. 1650, and coios, also “suffering from hernia”, in 1825.[2]

Timeline

  • 1592–1604 – the first record.[2]
  • 1621 – the diminutive coișor in a personal name, and coi in a document.[2][5]
  • c. 1650 – coian in the glossary of Caransebeș.[2]
  • 1688 – coiu in the Bucharest Bible.[9][5]
  • 1825 – coios in the Lexicon de la Buda.[2]

Meanings

Noun

  1. (vulgar, chiefly in the plural) A testicle;[4][10][1] coaie “balls”.[4][10][1]
  2. The counterweight of a steelyard.[3][2][5]

Word family

  • coios
  • coian
  • coișor
  • Aromanian col'u

Usage notes

The word is vulgar in modern use.[10][1] Its usual plural is coaie;[6][2] coiuri is rare.[6][2] Regional coi is also a verb, “to castrate” and reflexively “to dawdle, hesitate”, formed on the noun.[6][2]

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 Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2011–), Dicționarul etimologic al limbii române (DELR), vol. I: A–B (2011), vol. II: C (2015–2018), București: Editura Academiei Române; continued online at delr.lingv.ro, p. s.v. coi
  3. ^ a b c d e f Ciorănescu, Alexandru (1958–1966), Diccionario etimológico rumano, La Laguna: Universidad de La Laguna (Romanian ed.: Dicționarul etimologic al limbii române, București: Saeculum, 2001), p. s.v. coi
  4. ^ a b c DEX (2009), Dicționarul explicativ al limbii române [Explanatory dictionary of the Romanian language], Bucharest: Editura Univers Enciclopedic, p. 203
  5. ^ a b c d e Tiktin, Hariton (2000–2005), Rumänisch-deutsches Wörterbuch, 3rd ed., revised by Paul Miron and Elsa Lüder, 3 vols., Cluj-Napoca: Clusium, p. s.v. coi
  6. ^ a b c d e Academia Română, Institutul de Lingvistică „Iorgu Iordan – Al. Rosetti” (2010), Micul dicționar academic, 2nd ed., 4 vols., București: Univers Enciclopedic Gold, p. 1, 456
  7. ^ Pascu, Giorge (1925), Dictionnaire étymologique macédoroumain, 2 vols. (I: Les éléments latins et romans; II: Les éléments grecs, turcs, slaves, albanais, germaniques, magyars, néologismes, créations immédiates, obscurs), Iași: Cultura Națională, p. 1, 69
  8. ^ Meyer-Lübke, Wilhelm (1935), Romanisches etymologisches Wörterbuch, 3rd ed., Heidelberg: Winter, p. 2038
  9. ^ a b Biblia, adecă Dumnezeiasca Scriptură a ceii vechi și a ceii noao leage, București, 1688 (ed. 1988, tricentennial edition), p. Lev 21:20
  10. ^ a b c Volceanov, George (2007), Dicționar de argou al limbii române, București: Niculescu, p. s.v. coi

Related etymologies

  • apă · also from Latin
  • bun · also from Latin
  • unde · also from Latin
  • veni · also from Latin
  • noi · also from Latin
  • bine · also from Latin
  • un · also from Latin
  • și · also from Latin
Cite this entry

“Coi.” Etymologically, 11 Nov. 2026, etymologically.com/ro/coi. Accessed 12 Nov. 2026.

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