trip‧tych /ˈtrɪptɪk/ 
 noun [countable][
Date: 1700-1800; 
Language: Greek; 
Origin: triptychos 'having three folds', from tri- + ptyche 'fold'] 
technical a religious picture painted on three pieces of wood that are joined together 
 [TahlilGaran] Dictionary of Contemporary English ▲