What does the word Pleurisy mean?

Pleurisy: noun Medicine inflammation of the pleurae, which impairs their lubricating function and causes pain when breathing. It is caused by pneumonia and other diseases of the chest or abdomen. DERIVATIVES pleuritic |ploŏˈritik| |pluˈrɪdɪk| |plʊˈrɪdɪk| |pləˈrɪdɪk| |-ˈrɪtɪk| adjective ORIGIN late Middle English : from Old French pleurisie, from late Latin pleurisis, alteration of earlier Latin pleuritis, from Greek pleura ‘side of the body,