EX TURPI CAUSA NON ORITUR ACTIO TheLaw.com Law Dictionary & Black's Law Dictionary 2nd Ed.Latin, meaning No action arises on an immoral contract. Related Posts:EX TESTAMENTOEX NUDO PACTO ACTIO NON ORITUREX DOLO MALOEX DOLO MALO ACTIO NON ORITURNUDUM PACTUMIMMORALITY