daughterinlaw

By wife's daughter or son's wife we must be understood to mean persons who have been thus related to us; for if a woman is still your daughterinlaw, that is, still married to your son, you cannot marry her for another reason, namely, because she cannot be the wife of two persons at once.

The Institutes of Justinian John Baron Moyle 1891

Finally, a father-in-law may sue on an outrage committed on his daughterinlaw, if the son to whom she is married is in his power.

The Institutes of Justinian John Baron Moyle 1891

9 If a woman who has been divorced from you has a daughter by a second husband, she is not your stepdaughter, but Iulian is of opinion that you ought not to marry her, on the ground that though your son's betrothed is not your daughterinlaw, nor your father's betrothed you stepmother, yet it is more decent and more in accordance with what is right to abstain from intermarrying with them.

The Institutes of Justinian John Baron Moyle 1891

9 It is to be noted, that if your daughterinlaw conceives by your son, and you emancipate or give the latter in adoption during her pregnancy, the child when born will be in your power; but if the child is conceived after its father's emancipation or adoption, it is in the power of its natural father or its adoptive grandfather, as the case may be.

The Institutes of Justinian John Baron Moyle 1891