The crossword solutions for the term 'ID's Counterpart' are 'EGOS' (4 letters) and 'EGO' (3 letters). The term 'EGO' is derived from Latin and Greek, and is used to refer to a person's sense of self-importance or self-esteem. It is often used in psychology to refer to the conscious mind, which is responsible for making decisions and forming opinions. The term 'egos' is a plural form of 'EGO, ' and is used to refer to the collective sense of self-importance or self-esteem of a group of people.