harass
/ˈharəs//həˈras/
verb
[with object]
1 Subject to aggressive pressure or intimidation.
1.1 Make repeated small-scale attacks on (an enemy)
Origin
Early 17th century: from French harasser, from harer ‘set a dog on’, from Germanic hare, a cry urging a dog to attack.
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Henry Harris held his binoculars steady watching the smaller birds harass the hawk far above him.