verb (v)

• happen(verb.change)

  Example:
  These political movements recrudesce from time to time.
  

  Synonym:
  break, develop, operate
  

  source: wordnet30
• become raw or open(verb.change)

  Example:
  Such boils tend to recrudesce.
  

  Synonym:
  break out, erupt
  

  source: wordnet30
• To be in a state of recrudescence; esp., to come into renewed freshness, vigor, or activity; to revive.(verb)

  source: webster1913