English
fanpol
Blend of fan + police.
Proto-Indo-European *h₂weh₁- ‘to blow’
Latin vannus ‘fan for winnowing grain’
Old English fann ‘a winnowing fan’
Middle English fan
English fan
Proto-Indo-European *tpelH- ‘fortification; city’
…
Ancient Greek πολῑ́της ‘citizen’
Ancient Greek πολῑτείᾱ ‘citizenship; government’
Latin polītīa ‘state, government’
Middle French police ‘governance’
English police
Today it means
noun A fan who habitually tries to control others' fannish activity.
Language periods are conventional ranges, not dates for this word.
Etymograph / fanpol