Jurisprudence

noun

1. The philosophy or science of law.
2. A division, type, or particular body of law.

   "modern jurisprudence; federal jurisprudence; bankruptcy jurisprudence."

3. The science of law; the systematic knowledge of the laws, customs, and rights of men in a state or community necessary for the due administration of justice; the science which treats of compulsory laws, with special reference to their philosophy and history.
4. The body of laws existing in a given state or nation.
5. More specifically, the body of unwritten or judicial law considered in the light of its underlying principles and characteristic tendencies, and as distinguished from statute or legislative law.