verb
    
    -ens; -ened; -ening
    
    [+ obj] :to make (something or someone) weaker, less forceful, less effective, etc.
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    [no obj] :to become weaker, less forceful, less effective, etc.
    
    
    
    
    
    of money :to decrease in value when compared to money from other countries [no obj]