"traitor," 1917, from Paul Bolo, French adventurer shot for treason April 17, 1918; used in World War I with reference to pacifist propagandists; later somewhat assimilated to Bolshevik (q.v.).
bollard
bollix
bollock
bollocks
Bollywood
Bolo
Bologna
Bolognese
boloney
Bolshevik
bolster
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