Etymologically

Etymology and origin of the Latin word consocer

Confidence
Established
Formation
Derivation
First attested
40–103 Martial More words from the 1st century
Ultimate origin
Latin socer
Etymology tree
inherited borrowed derived
Latin socer
Latin cōnsocer
Romanian cuscru
Spanish consuegro
Italian consuocero

Pronunciation

  • Classical: [ˈkõː.sɔ.kɛr][1]
  • Ecclesiastical: [ˈkɔn.so.t͡ʃer][1]

Forms

cōnsocer m (genitive cōnsocerī); second declension[1]

Etymology

It is formed from Latin con- (“with, together”) + socer (“father-in-law”).[2][3][1] The second part goes back to Proto-Italic *swekuro- and Proto-Indo-European *suéḱuro- (“father-in-law”).[4]

Earliest recorded meaning

It is first found in Martial, in the sense of the father-in-law of one's child.[3][5][6]

Semantic evolution

The word named the relation between the fathers (and, in the feminine consocrus, the mothers) of a married couple.[6] Suetonius uses it of Appius Silanus in the life of Claudius,[3][6] and inscriptions from Venafrum of the 2nd century AD have it.[3] Ulpian, in the Digest, deals with the case of two consoceri.[3][6]

Timeline

  • 40–102/103 AD – Martial uses it.[3][5]
  • c. 75–c. 150 AD – Suetonius uses it in the life of Claudius.[3][6][5]
  • before 223 AD – Ulpian uses it in a legal text preserved in the Digest.[3][6][5]
  • c. 310–394 AD – Ausonius has the feminine consocrus.[6][5]

Meanings

Noun

  1. The father-in-law of one's son or daughter; a joint father-in-law.[2][6]

Usage notes

The feminine counterpart is consocrus, the mother of one's son-in-law or daughter-in-law.[6]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d e f g h Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  5. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b c d e f g h i Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
Cite this entry

“Consocer.” Etymologically, 13 Nov. 2026, etymologically.com/la/consocer. Accessed 14 Nov. 2026.

Last edited on . ·