ENDOGAMY

endogamy, intermarriage, inmarriage

(noun) marriage within one’s own tribe or group as required by custom or law

Source: WordNet® 3.1

Etymology

Noun

endogamy (usually uncountable, plural endogamies)

The practice of marrying or requiring to marry within one's own ethnic, religious, or social group.

(biology) the fusion of two related gametes.

Synonyms

• See also intermarriage

Antonyms

• exogamy

• See also intermarriage

Source: Wiktionary

En*dog"a*my, n.

Definition: Marriage only within the tribe; a custom restricting a man in his choice of a wife to the tribe to which he belongs; -- opposed to exogamy.

Source: Webster’s Unabridged Dictionary 1913 Edition