DEBILE FUNDAMENTUM FALLIT OPUS TheLaw.com Law Dictionary & Black's Law Dictionary 2nd Ed.Latin, meaning Where there is a weak foundation the work fails. Related Posts:DEBET ET SOLETOPUSSUBLATO FUNDAMENTO CADIT OPUSNOVUM OPUSFUROR CONTRAHI MATRIMONIUM NON SINIT QUIA CONSENSUS OPUS ESTAN ABRIDGMENT