verb tr.: to protest by refusing to buy a product or deal with a person, organization, nation etc.
noun: the practice or an instance of this
After Charles C. Boycott (1832-1897), an English land agent in Ireland, who was ostracized for refusing to lower rents during a time of poor harvest. Earliest documented use: 1880
Usage (from Wordsmith)
“Despite pressure to boycott state elections, voters in the disputed region of Kashmir are flocking to the polls.”
A Shift in the Mountains; The Economist (London, UK); Dec 10, 2014.