Judge-made law. Law which exists and applies to a group on the basis of historical legal precedents developed over hundreds of years. Because it is not written by elected politicians but, rather, by judges, it is also referred to as "unwritten" law. Judges seek these principles out when trying a case and apply the precedents to the facts to come up with a judgement. Common law is often contrasted with civil law systems which require all laws to be written in a code or written collection. Common law has been referred to as the "common sense of the community, crystallized and formulated by our ancestors". Equity law developed after the common law to offset the rigid interpretations medieval English judges were giving the common law. For hundreds of years, there were separate courts in England and it's dependents: one for common law and one for equity and the decisions of the latter, where they conflicted, prevailed. It is a matter of legal debate whether or not common law and equity are now "fused." It is certainly common to speak of the "common law" to refer to the entire body of English law, including common law and equity .
COMMON LAW
Meaning of COMMON LAW in English
Duhaime's Law English dictionary. Английский юридический словарь Duhaime . 2012