cuñado.

Headword: 
cuñado.
Principal English Translation: 

brother-in-law
(a loanword from Spanish)

Orthographic Variants: 
cuyado
Attestations from sources in English: 

Nocuyado Dn Juan de la Cruz = my brother-in-law don Juan de la Cruz (Calimaya, Toluca Valley, 1734)Caterina Pizzigoni, ed., Testaments of Toluca (Stanford: Stanford University Press and UCLA Latin American Center Publications, 2007), 212.