fanaticism
UK: fəˈnæt.ɪ.sɪ.zəm | US: fəˈnæt̬.ɪ.sɪ.zəm
n. excessive enthusiasm or zeal, often for a religious, political, or ideological cause
n. irrational devotion or uncritical fervor
The word "fanaticism" traces back to the Latin fanaticus, meaning "inspired by a deity" or "frenzied," derived from fanum (temple). Originally, it described religious ecstasy or divine inspiration. Over time, the term evolved to denote extreme, often irrational devotion to any cause. The suffix -ism (from Greek -ismos) was added to form a noun indicating a system or practice, solidifying its modern meaning of obsessive zeal.
His fanaticism for the political movement blinded him to its flaws.
Religious fanaticism has fueled many conflicts throughout history.
She criticized the fanaticism of extreme sports enthusiasts who disregard safety.
The cult leader exploited the fanaticism of his followers.
Fanaticism often stifles open debate and critical thinking.