Dissuade (5)
I believe the answer is:
deter
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">dissuade</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for deter that I've seen before include "Discourage or prevent from doing something" , "Cause not to do something" , "Try to prevent" , "Discourage (someone from an action)" , "stop" .)