Yes, it is possible to carry pride in one's language too far but it is neither desirable nor useful in any way. Linguistic chauvinism makes people consider their own language superior to those of others. They do not want to adopt words and phrases from other languages as they think it will spoil their language. Thus they deprive their language of enrichment and cause harm to it. When we love and respect our own language so much that we begin to hate and disrespect other language, it is called linguistic chauvinism.