Solutions Decay has 21 entries with similar clues

• 4-letter words
• rotsdecays
• bletSoftening of some fruits to the point of near decay
• 5-letter words
• mulchDecaying leaves, bark, straw, etc.
• fetidSmelly through decay
• humusDecayed plant and animal remains in the soil
• 6-letter words
• cariesBone decay
• rottenDecaying
• 7-letter words
• atrophyDecay through disuse
• dry-rotWood decay
• moulderDecay gradually
• 8-letter words
• gangreneTissue decay from interrupted blood supply
• decrepitIn the last stages of decay
• conserveSave from harm, loss, or decay
• 9-letter words
• atrophiedDecayed from disuse
• putrefiedDecayed
• decadenceState of decay
• 10-letter words
• perishableSubject to decay
• saprophyteMicroorganism that grows on decaying matter
• 12-letter words
• stop-the-rotPrevent further decay
• 13-letter words
• stops-the-rotArrests decay
• dental-cariesTooth decay