婿養子(むこようし)

むこようし
noun
adopted son-in-law
familylaw
1. adopted son-in-law
A man who marries into his wife's family and is legally adopted by her parents, taking their surname and becoming their heir. Traditionally a way to continue a family line or business when there was no son.
婿養子(むこようし)に入(はい)る。
To marry into the wife's family as an adopted son.
父(ちち)は婿養子(むこようし)で、母(はは)の姓(せい)を名乗(なの)っている。
My father is an adopted son-in-law and goes by my mother's surname.
老舗(しにせ)の旅館(りょかん)は、婿養子(むこようし)を迎(むか)えて代々(だいだい)家業(かぎょう)を継(つ)いできた。
The old inn has passed down the family business for generations by taking in adopted sons-in-law.

Also 入(い)り婿(むこ). Today a husband can take his wife's surname without being adopted; 婿養子(むこようし) means he is also adopted by her parents and becomes their legal child.

Common collocations

Similar words

general
Added 2026.10.16 9:24 · Revised 2026.10.16 9:26
32000/32044_mukoyoushi