D defs.my
Entry 1 sense Webster, 1913

Intermarry

/ĭnˌ-tẽrm-ăr'-ē/ · In·ter·mar·ry · IPA /ˌɪntə(ɹ)ˈmæɹi/
01 v. i. To become connected by marriage between their members; to give and take mutually in marriage; -- said of families, ranks, races, castes, etc.
  1. 1.
    To become connected by marriage between their members; to give and take mutually in marriage; -- said of families, ranks, races, castes, etc.
    “About the middle of the fourth century from the building of Rome, it was declared lawful for nobles and plebeians to intermarry.” Swift.