Sentence:  ...By this scimitar, / That slew the Sophy and a Persian prince / That won three fields of Sultan Solyman, / I would outstare the sternest eyes that look, / Outbrave the heart most <WSD>daring</WSD> on earth, / Pluck the young sucking cubs from the she-bear, / Yea, mock the lion when he roars for prey, / To win thee, lady. ... 
Meaning of the word marked with <WSD> tags:  Courageous or showing bravery; doughty.