The Arabic word hadith literally means speech and also new: because speech is created as it is uttered, it is always new. Following the Prophet Muhammad's death (632 CE), people engaged in speech about him so much that the word hadith was eventually reserved for speech related to the Prophet............. Download the full article in pdf attachment (below)
a 7,000 word Article, The Encyclopedia of Religion, New York: Macmillan Publishing Co., 2005.
This book refers mainly to hadith methodology and criteria that seek to verify accuracy of the text and authenticity of hadith. A great deal of what is presented in this book is concerned with the methods of enquiry and principles which the hadith scholars have formulated for verifying the authenticity of hadith and accuracy of its message.
The Islamic Foundation, 2005, pp.xii-257.
Hadith Methodology: Authenticity, Compilation, Classification and Criticism of Hadith, Kuala Lumpur: Ilmiah Publisher, 2002, pp.332.