Etymologically
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crux

Etymology and origin of the Latin word crux

History

Pronunciation

  • IPA (Classical): [ˈkrʊks][1]
  • IPA (Ecclesiastical): [ˈkruks][1]

Forms

crux f (genitive crucis); third declension[1]

Etymology

Of uncertain origin.[2][3][4] It goes back to Proto-Italic *kruk(-i)-, perhaps originally an i-stem.[2][1] It is often compared with Celtic and Germanic words for a heap or a back, such as Old Irish crúach (“heap, hill”), Welsh crug (“mound”), Old Norse hryggr (“backbone”) and Old English hrycg (“back”), but de Vaan notes that the Germanic vowels vary, the senses “backbone” and “heap” need not go together, and the root shape does not look Indo-European.[2][4] He suggests it may be a non-Indo-European word taken into Italo-Celtic, or a borrowing by Latin from a neighbouring language.[2] Pokorny linked it with Proto-Indo-European *(s)ker- (“to turn, bend”), taking the original sense to be a round stake, which Wiktionary considers problematic.[5][1]

Earliest recorded meaning

It is found from Plautus onwards,[2][6] who has a slave say “I know the cross will be my tomb”.[3]

Semantic evolution

It meant any wooden frame on which criminals were exposed to die, a cross or a stake for impaling, and by extension death by crucifixion.[3][7] Comedy used it in curses such as i in malam crucem “go and be hanged”, and for a person or thing that is a torment, especially mala crux.[3] Columella quotes the saying that the strictest law is the greatest torture.[3] Ennius and Gaius Gracchus used it as a masculine.[3][7]

In Christian Latin it became the Cross of Christ and its sign, and the Vulgate speaks of taking up one's cross.[8][9] Medieval writers used it for martyrdom and ascetic mortification, the ordeal of the cross, boundary and market crosses, and the transept of a church.[9] It gave French croix and Spanish cruz,[1] and English cross came from it through Old Irish and Norse.[4]

Timeline

  • c. 250–184 BC – Plautus uses it for the cross as a punishment.[3][6]
  • 190–159 BC – Terence has a slave say he deserves the cross.[3][6]
  • 81–43 BC – Cicero denounces crosses set up for Roman citizens.[3][6]
  • 390–406 AD – The Vulgate speaks of taking up one's cross.[8][6]
  • Middle Ages – It means the sign of the cross, a boundary cross and a transept.[9]
  • mid-10th century – English takes it as English cross through Old Irish and Norse.[4]

Meanings

Noun

  1. A cross or stake on which criminals were executed.[3][7]
  2. Death by crucifixion, i in malam crucem: go and be hanged.[3]
  3. Torture, extreme discomfort.[3]
  4. A torment, plague (of a person or thing).[3]
  5. (Christian Latin) The Cross of Christ; the sign of the cross; martyrdom.[9][10]
  6. (Medieval Latin) A boundary cross; a market cross; a transept.[9]

Word family

  • cruciārius
  • crucifer
  • crucifīgō
  • cruciō
  • crucifixor
  • cruciger
  • cruciābilis
  • cruciābilitās
  • cruciābiliter
  • cruciābundus
  • cruciāmen
  • cruciāmentum
  • cruciātiō
  • cruciātor
  • cruciātōrius
  • cruciātus
  • English cross
  • English crucial
  • English crusade
  • English excruciating

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  3. ^ 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
  4. ^ a b c d Harper, Douglas, Online Etymology Dictionary, https://www.etymonline.com
  5. ^ Pokorny, Julius (1959), Indogermanisches etymologisches Wörterbuch, Bern; Munich: Francke
  6. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  7. ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  8. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  9. ^ a b c d e Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  10. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry

“Crux.” Etymologically, 10 Oct. 2026, etymologically.com/la/crux. Accessed 10 Oct. 2026.

Last edited on .