Translation guide
A custom where a widower marries his deceased wife's sister. This is a culturally specific concept; Japanese has a direct term but it is not widely known. In most contexts, explaining the situation is more natural.
The specific custom of marrying a deceased wife's sister
Direct anthropological term for sororate marriage. Literally 'reverse relation marriage'. Used in academic contexts.
The custom of sororate marriage remains in that tribe.
Descriptive phrase meaning 'to marry the younger sister of one's deceased wife'. More natural in conversation than the technical term.
Another descriptive phrase: 'after the wife's death, to marry her younger sister'. Clarifies the sequence.
Sororate marriage is not a common concept in modern Japan. The term 逆縁婚 is primarily used in anthropology or historical contexts. In everyday conversation, it's better to explain the situation rather than use the technical term.
He married his deceased wife's younger sister.
There is a custom of marrying the younger sister after the wife's death.