father-in-law
n. மாமனார், மனைவியின் தந்தை, கணவனின் தந்தை.
Fa"ther-in-law`, n.; pl. Fathers-in-law (. Defn: The father of one's husband or wife; -- correlative to son-in- law and daughter-in-law. Note: A man who marries a woman having children already, is sometimes, though erroneously, called their father-in-law.