Sentence:  "One kiss, my bonny sweetheart, I'm after a prize to-night, / But I shall be back with the yellow gold before the morning light; / Yet, if they press me sharply, and <WSD>harry</WSD> me through the day, / Then look for me by moonlight, / Watch for me by moonlight, / I'll come to thee by moonlight, though Hell should bar the way." 
Meaning of the word marked with <WSD> tags:  To make repeated attacks on an enemy.