Legum Doctor (LL.D.) or, in English, Doctor of Laws, is a doctorate-level academic degree in law or an honorary degree, depending on the jurisdiction. The double “L” in the abbreviation refers to the early practice in the University of Cambridge to teach both canon law and civil law (Doctor of both laws), with the double “L” itself indicating the plural, although Cambridge now gives the degree the name Doctor of Law in English. This contrasts with the practice of the University of Oxford, where the degree that survived from the Middle Ages is the DCL or Doctor of Civil Law (only). Source: Wikipedia (en)