Xeros is a combination of the words "Keep" and "Rosy". The word was coined as a euphemism for xerophobia, which is the fear of blood, wounds, or pain associated with surgical procedures. In a medical context, a phobia may be associated with a fear of surgery or a fear of certain diseases or treatments. Unwelcome is not the same as disgust or dislike associated with blood or disease.
The word "xeros" means reluctance or refusal to greet someone or initiate a conversation when meeting someone. It may indicate a reluctance to communicate with a person or a lack of respect for his or her wants, needs or wants