The crossword solution for the term 'FALLS PREY TO DECAY' is 'ROTS'. This term is used to describe the process of organic material breaking down due to the action of bacteria, fungi, and other microorganisms. It is a natural process that occurs over time, and can be accelerated by environmental factors such as temperature and humidity. Rots can cause significant damage to buildings, furniture, and other materials, leading to costly repairs or replacements.