-in-law suffix.
[ɪn'lɔ:][from IN preposition + LAW noun1, after Anglo-Norman en ley, Old French en loi (de mariage) in law (of marriage).]Appended to nouns of personal relationship with the sense 'by marriage, in the eye of canon law', as
father-in-law,
sister-in-law.
[TahlilGaran] English Dictionary ▲
in-law noun & adjective.
['ɪnlɔ:] colloq. L19.[from -IN-LAW.]A. noun. A relative by marriage. Usu. in
pl. L19.b. attrib. or as
adjective. Of or pertaining to relatives by marriage.
L19. [TahlilGaran] English Dictionary ▲