ex contractu

The diviſion of obligations, into thoſe ariſing from a contract, or quaſi ex contractu; from a delict, or quaſi ex delicto, takes place in the law of England [marginal note]. … Obligations civil, in a large ſenſe, may be divided into ſuch as ariſe from a contract, or quaſi contract; or from a delinquency and crime, or a quaſi delinquency, as they are termed in the civil law.