Endogamous and Exogamous
References:
PTS: Dialogues of the Buddha, I, Ambattha Sutta, Rhys Davids, trans, Introduction, pp. 99
Oxford English Dictionary
[EDITED ENTRY]
Characterized by, of the nature of, or pertaining to, endogamy. 1. The custom of marrying only within the limits of a clan or tribe.
Ex-: the reverse.