The most lasting impact of French is the tremendous amount of technical vocabulary that derives from it, including many basic words in the English legal system, such as "agreement,""arrest,""estate,""fee simple,""bailiff,""council," ... For example thousands of articles in the Megelle (Islamic Law), are no longer vital and integral parts of Moslem Law due to their inapplicability. To give an example: Polygamy, which was an accepted social phenomenon of Arab society, ...