(a.) Marrying within the same tribe; -- opposed to exogamous.

atavistic bodily born coeval congenital connatal connate connatural constitutional crossbred endogamic endogamous exogamic exogamous genetic hereditary impregnated in the blood inborn incarnate indigenous inherited innate inseminated instinctive instinctual linebred native native to natural natural to organic outbred physical primal temperamental