Mazut, Page 54, CIR Staff Paper, Center for International Research (U.S.), Publisher: U.S.S.R. Input-Output Branch, Center for International Research, Bureau of the Census, U.S. Department of Commerce, 1984.
Definition of mazut in English by Oxford Dictionaries: Origin: Late 19th century; earliest use found in Chambers's Journal of Popular Literature. From Russian mazut fuel oil, perhaps from an Azerbaijani Turkish derivative ultimately of Arabic zayt oil (plural zuyūt); probably unrelated to Russian regional mazutina oily stain (Tver′ region, 1897), Russian mazat′ to oil, to smear...