" Exogamy : the custom of marrying outside the tribe , family , clan , or other social unit . "
异族通婚:同外部部落、家庭、部族或其他社会单元通婚的风俗。
Hereafter we shall see how a tribe organized on the principle of endogamy might be developed from one organized on the principle of exogamy , in perfect consistency with the law against the intermarriage of relations .
This preference for exogamy , gutman suggests , may have derived fromwest african rules governing marriage , which , though they differed from one tribalsgroupsto another , all involved some kind of prohibition against unions with close kin .
And although his own investigations into exogamy force the fact under his nose that in many , if not in most or even in all , cases , this opposition exists only in his own imagination , he nevertheless makes it the basis of his whole theory .
This preference for exogamy , gutman suggests , may have derived from west african rules governing marriage , which , though they differed from one tribal group to another , all involved some kind of prohibition against unions with close kin .
Perhaps there is no question leading deeper into the foundations of civil society than that which regards the origin of exogamy , unless it be the cognate question of the origin of caste , which admits , however , more readily of ingenious surmises , and what mathematicians call singular solutions .