Draenei is the name of the language used by all types of draenei from Outland or Azeroth, including Broken, Lost Ones and uncorrupted draenei. It is likely most of the language is derived from the original dialect of Eredun, but some of it may be derived from native languages of Draenor. The uncorrupted 'Exiled Ones' speak Draenei and Common.