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domnus

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Etymology and origin of the Latin word domnus

Confidence
Established
Formation
Derivation
First attested
387 AD, inscription
Ultimate origin
Latin dominus
Etymology tree
inherited borrowed derived
Latin dominus
French domino
English domino
Latin domnus
Italian don

Forms

domnus m (genitive domnī, feminine domna); second declension[1]

Etymology

It is from Latin dominus (“master, lord”), shortened by the loss of the unstressed vowel.[1][2] The TLL treats the two forms together; in manuscripts from the 4th century on the short form is common and often stands beside the full one.[2] It survives in Romanian domn, Italian donno, Spanish dueño and Portuguese dono, and a further shortened Late Latin ⟨dom⟩ gave Italian and Spanish don and French dom.[1]

Earliest recorded meaning

The short form is mostly found in inscriptions as an honorific title;[2] the earliest dated one the TLL lists names the emperor Valentinian II in 387.[2]

Semantic evolution

In inscriptions it is used of anyone, as when the net-fighter Cresces is called puparum domnus, “master of the girls”, but above all as a title:[2] of clergy and saints (memoria domnī Petrī et Paulī), of emperors and kings, of gods (domnus Mercurius, domnus Silvānus) and of Christ.[2] In letters and councils it served as a title of respect, as when Gregory the Great writes of the emperor's children as domnī or a church council of 626 joins dominō and domnō in one address.[2] Ecclesiastical Latin uses it for lord or master.[3]

Timeline

  • 387 AD – An inscription gives the title to the emperor Valentinian II.[2]
  • 496 AD – An inscription speaks of rēgis domnī Alarīcī, “of the lord king Alaric”.[2]
  • 540–604 AD – Gregory the Great uses it in his letters of the emperor's family.[2][4]
  • 626 AD – A church council uses dominus and domnus side by side.[2]

Meanings

Noun

  1. (Late Latin, Ecclesiastical Latin) lord, master; a form of dominus.[1][3][5]
  2. (Late Latin) A title of respect for clergy, saints, emperors, kings and gods.[2]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  3. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  4. ^ Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press

Descendants

Cite this entry

“Domnus.” Etymologically, 23 Oct. 2026, etymologically.com/la/domnus. Accessed 23 Oct. 2026.

Last edited on . ·