intermarry

And at that time the children of Tubal swore to the children of Chittim, saying, You shall not intermarry amongst us, and no man shall give his daughter to any of the sons of Chittim.

For the children of Tubal kept their oaths not to intermarry with them, and they would not break their oaths.

And Hamor spoke unto them, saying, The soul of my son Shechem longeth for your daughter; I pray you give her unto him for a wife and intermarry with us; give us your daughters and we will give you our daughters, and you shall dwell with us in our land and we will be as one people in the land.