When you are required to attend an event, this is an example of a time when you attend because of a compulsion to attend.
When you feel an unstoppable urge to have a cigarette, this is an example of a time when you feel a compulsion to smoke.
Origin of compulsion
- Middle English from Old French from Late Latin compulsiō compulsiōn- from Latin compulsus past participle of compellere to compel compel
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle French compulsion, from Late Latin compulsiō, from Latin compellere (“to compel, coerce”); see compel.