Human: Where does the word ‘self-esteem’ come from? Assistant: 
The word self-esteem comes from the Latin word semel insitam, meaning “to love oneself”. The concept of self-esteem first appeared in the early 1900s, and was introduced to the United States by the psychologist William James in his book The Principles of Psychology. The term self-esteem is used to describe the positive or negative feelings people have about themselves. People who have high self-esteem are generally happier and more satisfied with their lives than those who have low self-esteem.