義ぎ祖そ父ふ

noun

grandfather-in-law

Refers to the grandfather of one's spouse, or a step-grandfather by marriage. A formal kinship term.

• 義ぎ祖そ父ふは今年ことしで九きゅう十じゅっ歳さいになります。

  My grandfather-in-law will be ninety years old this year.