seize up
phrasal verb
            
              seized up; seizing up; seizes up            
        
    
                                
              
          
                                                      : to stop working because the moving parts can no longer move                                      
              
                             
The engine/brakes suddenly seized up.
                         
                
                  —sometimes used figurativelyHer brain seized up when she tried to answer the question.
    
                
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  Merriam-Webster unabridged




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