verb (v)

• behave in a patronizing and condescending manner(verb.social)

  source: wordnet30
• do something that one considers to be below one's dignity(verb.social)

  Synonym:
  deign, descend
  

  source: wordnet30
• debase oneself morally, act in an undignified, unworthy, or dishonorable way(verb.social)

  Synonym:
  lower oneself, stoop
  

  source: wordnet30
• treat condescendingly(verb.communication)

  Synonym:
  patronise, patronize
  

  source: wordnet30
• To stoop or descend; to let one's self down; to submit; to waive the privilege of rank or dignity; to accommodate one's self to an inferior.(verb)

  source: webster1913