English to English

verb (v)

• become covered with clouds(verb.weather)

  Synonym:
  cloud over, cloud up
  

  source: wordnet30
• make obscure or unclear(verb.change)

  Synonym:
  bedim, obfuscate, obscure
  

  source: wordnet30
• To cover or overspread with clouds; to becloud; to overcast.(verb)

  source: webster1913