emännänimi
Emännänimi is a Finnish term that literally translates to "hostess name" or "mistress name." Historically, it referred to a specific type of surname usage that was common among married women in Finland. When a woman married, she had the option of either keeping her maiden name or adopting her husband's surname. If she chose to adopt her husband's surname, she would sometimes use a hyphenated form, combining her maiden name with her husband's name, or in some cases, she would use her husband's name preceded by her maiden name without a hyphen. This practice of using one's maiden name in conjunction with or in place of a husband's name is what emännänimi describes.
The concept of emännänimi is closely tied to Finnish legal and social customs regarding marriage and surnames.