noun, noun or participle which takes 'suru', intransitive verb
reverting to one's original family name; reverting to one's maiden name
Used when someone returns to a previous surname, most commonly after divorce or the end of an adoption. The する form is intransitive.
離婚後、彼女は旧姓に復姓した。
After the divorce, she reverted to her maiden name.
養子縁組が解
The adoption was dissolved, and he reverted to his original family name.