verb (v)

• remove offensive capability from(verb.competition)

  Synonym:
  demilitarise, demilitarize
  Antonym:
  arm, build up, fortify, gird
  

  source: wordnet30
• make less hostile; win over(verb.emotion)

  Example:
  Her charm disarmed the prosecution lawyer completely.
  

  source: wordnet30
• take away the weapons from; render harmless(verb.competition)

  Synonym:
  unarm
  

  source: wordnet30
• To deprive of arms; to take away the weapons of; to deprive of the means of attack or defense; to render defenseless.(verb)

  source: webster1913