We have the word concubine in English. Concubinage apparently is also a word in English but is not very commonly used. In most common English a concubine would refer to something like a member of a harem. Which I think either member of a modern unmarried couple would not be happy with such a comparison.
We have the word concubine in English. Concubinage apparently is also a word in English but is not very commonly used. In most common English a concubine would refer to something like a member of a harem. Which I think either member of a modern unmarried couple would not be happy with such a comparison.