What does it mean to depart from established norms or conventions?

The term "eccentric" refers to behavior or actions that deviate from the established norms or conventional practices. When someone is described as eccentric, it typically means they have a unique or unconventional way of thinking or acting, which stands out from what is considered standard or typical. This aligns perfectly with the idea of departing from established norms or conventions, as it highlights individuality and distinctiveness in a manner that sets someone apart. For instance, an eccentric artist might have a unique style that challenges traditional artistic conventions.

The other terms do not encapsulate this idea. A "dervish" refers to a member of a Muslim religious order known for their whirling dance in devotion, which doesn’t specifically relate to departing from norms in a general sense. "Edify" means to instruct or improve someone morally or intellectually, and "diffuse" refers to spreading out over a wide area or among a large number of people, neither of which inherently involves the concept of deviating from established norms. Thus, "eccentric" is the most fitting choice that captures the essence of straying from conventions.