This feels like one of those things I already knew and just forgot about.
"When retired British army captain Charles Boycott, acting as an agent for an absentee landlord, tried to evict tenant farmers for refusing to pay their rent, he was ostracized by the [Land League] and community. [...] Boycott’s fate was soon well known, and his name became a byword for that particular protest strategy"
https://www.merriam-webster.com/dictionary/boycott
