Definition - What does Et Uxor mean?
Et uxor is a Latin phrase meaning "and the wife" that is abbreviated as "et ux." Its most common use is evident in historic legal documents such as old deeds. In this context, it was used to document a married couple's ownership of the specified property without naming the woman.
Justipedia explains Et Uxor
Although it is not used as frequently now as in the past, this Latin term for "and the wife," "and wife" or "and his wife," still appears in some modern legal documents.
Specifically, it is used in the context of civil law, when a husband and wife either bestow or receive a gift of money or property. It can also be used in cases where a husband and wife have joint ownership of property, or when a husband files a lawsuit on his wife's behalf.