家法 is read as かほう (kahou) and means family code.
かほう
kahou
こっかぎょうせいそしきほう
National Government Organization Act
こっかそうどういんほう
National Mobilization Law (1938)
ほんこんこっかあんぜんいじほう
Hong Kong National Security Law
むほうこっか
rogue nation
にほんみんしゅほうりつかきょうかい
Japan Democratic Lawyer's Association
へいほうか
tactician
かない
(my) wife
かてい
home
かぐ
furniture
かせい
household economy
かたく
domicile
かていない
within the family