Empathy

Empathy is a word that means that someone is able to share or understand the emotions and feelings of another person. Someone may need to have a certain amount of empathy before they are able to feel compassion. The word was coined in 1909 by the English psychologist Edward.B. Titchener.
Definitions.
Empathy is an ability with many different definitions. They cover a wide spectrum, ranging from caring for other people and having a desire to help them, to experiencing emotions that match another person's emotions, to knowing what the other person is thinking or feeling, to blurring the line between self and other. Below are definitions of empathy:
Lack of empathy.
Empathy is found in many, perhaps all, mammals, and may be essential part of our specie. It does help the group as well as the individual. Lack of empathy is found in various types of mental disorder, such as psychopathy, antisocial personality disorder, narcissistic personality disorder and sadistic personality disorder.