verb (v)

• give moral or emotional strength to(verb.emotion)

  Synonym:
  comfort, console, solace
  

  source: wordnet30
• cause to feel better(verb.body)

  Example:
  The medicine soothes the pain of the inflammation.
  

  Antonym:
  irritate
  

  source: wordnet30
• To assent to as true.(verb)

  source: webster1913