cacoethes
/ˌkækoʊˈiːθiz/
noun
- An irresistible urge or compulsion to do something, especially something unwise or harmful.
- She had a cacoethes for buying old books she never read.
- His cacoethes to interrupt every conversation annoyed his coworkers.
- The artist's cacoethes to keep painting even when exhausted led to a masterpiece.