"Parols de ley" is a term used in Medieval English law referring to a solemn declaration of truth. The spelling of this phrase follows Middle English conventions, with "parols" pronounced /pəˈrɔːlz/ and "ley" pronounced /leɪ/. The use of "parols" instead of "paroles" and "ley" instead of "law" reflect the unique spelling and pronunciation of words in medieval English. This term played a significant role in legal proceedings of the time, providing a means for individuals to make verifiable statements under oath.