*epitrope*

‖n. [ L., fr. Gr. &unr_; reference, arbitration, fr. &unr_; to turn over, to give up, yield; 'epi` upon, over + &unr_; to turn. ] (Rhet.) A figure by which permission is either seriously or ironically granted to some one, to do what he proposes to do; e. g., “He that is unjust, let him be unjust still.” [ 1913 Webster ]