LAESIO ULTRA DIMIDIUM VEL ENORMIS

In Roman law. The injury sustained by one of the parties to an onerous contract when he had been overreached by the other to the extent of more than one-half of the value of the subject matter; e.p., when a vendor had not received half the value of property sold, or the purchaser had paid more than double value. Colq. Rom. Civil Law, f 2094.