The present research investigates the linguistic roots in (Al-MuhT fi Al-Lugha) by Salih bin Abad (385A.H.). The origins are statistically analysed and studied. The statistical analysis of (Al-MuhT fi Al-Lugha) depended on accurate deduction, then a descriptive analytical study was conducted and compared between the linguistic origins of Al-MuhT and six other Arabic dictionaries namely: Kitab Al-Ain by Al-Khalil bin Ahmed Al-Faraheedi (157A.H.), Jamharat Al-Lugha by Ibn Duraid (321A.H.), Tahtheeb Al-Lugha by Al-Azhari (370A.H.), Al-Sihah by Al-Jawahiri (400A.H.), Asas Al-Balagha by Al-Zamakhshari (538A.H.) , and Lisan Al-Arab by Ibn Manzoor (711A.H.).After comparison, the study concluded that these dictionaries differed from each other in the method of presentation, explanation, the size and type of material of each dictionary. In addition to the similarities between them, the differences are related to the aim and purpose of writing the dictionary while the similarities are due to the similarities of the references. We hope that we were successful in doing this work.