per ‧ pet ‧ u ‧ ate /pəˈpetʃueɪt $ pər-/ BrE AmE verb [transitive]
to make a situation, attitude etc, especially a bad one, continue to exist for a long time:
an education system that perpetuates the divisions in our society
—perpetuation /pəˌpetʃuˈeɪʃ ə n $ pər-/ noun [uncountable]