What is smoth?

"Smoth" appears to be a misspelling or typo. If you meant "smooth," it refers to a surface that is even and free from roughness, or it can describe something that is done effortlessly and without interruption. In a broader context, it can also refer to a pleasing or harmonious quality in various forms, such as music or conversation. If you meant something else by "smoth," please provide more context!