The term 'begrimes' is a verb meaning to make something dirty or discolored. The crossword solutions for this term are 'soils' and 'soots'. Soils are a mixture of organic matter, minerals, gases, liquids, and organisms that together support life on Earth. Soils can be found in many different colors, textures, and compositions. Soots are a type of fine particles created by the incomplete combustion of organic materials such as coal, wood, and oil. They are usually black or dark gray in color and can cause air pollution when released into the atmosphere.