In Sir Gawain and the Green Knight, the one who first accepts the Green Knight’s challenge was of course King Arthur. This was the case because he was the one who’s being mocked by the Knight. However, when Arthur gets the Knight’s axe, Sir Gawain said that he would take the challenge himself.
Im guessing the word underlined is Evoke. Evoke simply means to Bring or recall to the conscious mind. Id say the answer is - to inspire and emotion or reaction