Compulsion refers to a strong, often irresistible urge to perform a particular action, even if one knows that it's not rational or desirable. It can imply a sense of pressure that makes someone feel they have to do something against their will. This term is often associated with psychological or behavioral contexts, such as in compulsive behaviors seen in certain disorders.
The word compulsion comes from the Latin word "compellere," meaning "to drive together," which is derived from "com-" (together) and "pellere" (to push or drive). This reflects the inherent force or inner drive associated with the term.