dissuade, discourage, prevent, deterr, block, forestall, defend, Debar, nullify, defeat, more...

encourage, motivate, inspire

bleach, detergent, soap, dishwashing liquid, hand soap, liquid soap, bar soap, body wash, shampoo, more...

block or dissuade,   scared off,   frighten off (from),   scaring off,   to be put off,   help prevent,   attempt to dissuade,   put someone off,   repel or delay,   stop from stealing