I'm Facing a problem with Orphaned Terms, That I cannot delete them from term store management tool under manage metadata service application, so there is anyway to clear it?
note: I try to delete them using powershell and I get this exception
"This operation is invalid in the Orphaned Terms term set.  The operation failed."

Thanks.[![enter image description here][1]][1]


  [1]: http://i.stack.imgur.com/pLUZW.jpg