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AD FIDEM

ad  fidem  (ad  fI-d<<schwa>>m),  adv.[Law  Latin]  In  allegiance;  under  allegiance;  owing

allegiance.  •  This  term  appeared  in  a  variety  of  phrases,  including  ad  fidem  regis  (“under  the

king’s allegiance”) and natus ad fidem regis (“born in allegiance to the king”). [Blacks Law 8th]