ostracise
— Verb
– English
~ expel from a community or group
ostracise
— Verb
– English
~ avoid speaking to or dealing with; "Ever since I spoke up, my colleagues ostracize me"
ostracism
— Noun
– English
~ the state of being banished or ostracized (excluded from society by general consent); "the association should get rid of its elderly members--not by euthanasia, of course, but by Coventry"