Noun
The custom, or tribal law, which prohibits marriage between members of the same tribe; marriage outside of the tribe; -- opposed to endogamy.
Source: Webster's dictionaryThere are other marriages in which the man is older than the woman. citation The incest taboo, exogamy and endogamy further Societies have often placed restrictions on marriage to relatives, though the degree of prohibited relationship varies widely. Source: Internet
Marvin Harris 1997 Culture, People and Nature: An Introduction to General Anthropology 7th edition Longman pp. 317–318 Class, caste, ethnic, and racial endogamy typically coexists with family exogamy and prohibitions against incest. Source: Internet
Marriage within the gotra ("swagotra" marriages) are banned under the rule of exogamy in the traditional matrimonial system. Source: Internet
Through exogamy, otherwise unrelated households or lineages will form relationships through marriage, thus strengthening social solidarity. Source: Internet