customary, adjective
Usually in the collocations customary law, customary union. Of or pertaining to Black African traditional custom or law. See also Native Law (Native noun sense 1 c).
1927 Act 38 in Stat. of Union 332No male Native shall, during the subsistence of any customary union between him and any woman, contract a marriage with any other woman.
1994 J. Raphaely in Femina Jan. 6One of the direct results was the throwing out of a proposal by traditional leaders that customary law should take precedence over the principle of equality in the Bill of Rights.

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