Sentence:  But gently could his passion entertaine, / Though she Love's princesse, he a lowly swaine. / First of his bold intrusion she <WSD>acquites</WSD> him, / Then to her service (happy Boy!) admits him, / And, like another Love, with bow and quiver fits him. 
Meaning of the word marked with <WSD> tags:  To declare or find innocent or not guilty.