Decrease

reduce lessen decline diminish fall off weaken subside abate ease shrink lower fade dwindle contract curtail cut down slack off calm down soften slacken deteriorate wane waste ebb quiet sink wear down modify settle restrain curb check slow down lighten drop off tail off die down peter out slump dry up wither decay droop evaporate narrow down lose edge depreciate devaluate run low slash crumble wear away