cousin-in-law

noun

Husband or wife of one's cousin.

OriginEnglish cousin ← Middle English cosyn ← Old French cosin →
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Meanings

nouncousin-in-law (plural cousins-in-law)

plural cousins-in-law

  1. Husband or wife of one's cousin.
  2. Cousin of one's husband or wife.

Origin

  1. Proto-Indo-European*ḱe?
  2. Proto-Indo-European*ḱóm
  3. Proto-Italic*kom
  4. Proto-Italic*kom-
  5. Latincon-
  6. Proto-Indo-European*swé
  7. Proto-Indo-European*h₁ésh₂r̥
  8. Proto-Indo-European*su-h₁ésh₂-ōr?
  9. Proto-Indo-European*swé
  10. Proto-Indo-European*swésōr
  11. Proto-Italic*swesōr
  12. Proto-Italic*swesrīnos
  13. Latinsobrīnus
  14. Latincōnsobrīnus
  15. Old Frenchcosin
  16. Middle Englishcosyn
  17. Englishcousin
  18. Englishcousin-in-law

From cousin + -in-law.

Full word history & related roots →

Translations

Chinese Mandarin 表姐夫, 表嫂
  • 表姐夫 (biǎojiěfu)husband of one's cousin
  • 表嫂 (biǎosǎo)wife of one's cousin
Dutch aangetrouwde neef, echtgenoot van neef
  • aangetrouwde neefhusband of one's cousin
  • echtgenoot van neefhusband of one's cousin
  • echtgenoot van nichthusband of one's cousin
  • aangetrouwde nichtwife of one's cousin
  • echtgenote van neefwife of one's cousin
  • echtgenote van nichtwife of one's cousin
  • neef van echtgenootcousin of one's husband
  • nicht van echtgenootcousin of one's husband
  • neef van echtgenotecousin of one's wife
  • nicht van echtgenotecousin of one's wife
French beau-cousin, cousin politique
  • beau-cousinhusband of one's cousin
  • cousin politiquehusband of one's cousin
  • belle-cousinewife of one's cousin
  • cousine politiquewife of one's cousin
  • beau-cousincousin of one's husband
  • cousin politiquecousin of one's husband
  • belle-cousinecousin of one's wife
  • cousine politiquecousin of one's wife
German Schwiegervetter, Schwiegervetter
  • Schwiegervetterhusband of one's cousin
  • Schwiegervettercousin of one's husband
Latin patruelis politicus, consobrinus politicus
  • patruelis politicushusband of one's cousin
  • consobrinus politicushusband of one's cousin
  • patruelis politicawife of one's cousin
  • consobrina politicawife of one's cousin
  • patruelis politicuscousin of one's husband
  • consobrinus politicuscousin of one's husband
  • patruelis politicacousin of one's wife
  • consobrina politicacousin of one's wife
Spanish primo político, prima política
  • primo políticohusband of one's cousin
  • prima políticawife of one's cousin
Swedish svärkusin, svärkusin
  • svärkusinhusband of one's cousin
  • svärkusinwife of one's cousin
  • svärkusincousin of one's husband
  • svärkusincousin of one's wife
Turkish kayın kuzen, kayın kuzen
  • kayın kuzencousin of one's husband
  • kayın kuzencousin of one's wife
Cite this entry
APA

cousin-in-law. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/cousin-in-law

MLA

“cousin-in-law.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cousin-in-law. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “cousin-in-law,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/cousin-in-law.

Source: cousin-in-law on Wiktionary, CC BY-SA 4.0.