Following are a number of back-translations as well as a sample translation for translators of Isaiah 14:9:

• Kupsabiny: “Also the realm of the dead are happy because of you
  it is prepared to receive you coming there.
  All the people who are dead shall rise up and welcome you,
  together with all the leaders who have died.” (Source: Kupsabiny Back Translation)
• Newari: “Having seen that you are about to come, the grave feels it is urgent to meet you.
  To welcome you, it will rouse the spirits of those who have already died.
  All those spirits of all the leaders in the world
  and the kings of all the lands will be caused to rise from their thrones.” (Source: Newari Back Translation)
• Hiligaynon: “‘The place of the dead-ones is all beyond itself of your (sing.) coming; it is now ready to meet you (sing.). The souls of the people who were powerful in-time-past in the world are in-uproar to welcome you (sing.). The souls of the kings are-standing in their throne to meet you (sing.).” (Source: Hiligaynon Back Translation)
• English: “The dead people are are eagerly waiting for you to come to the place where they are.
  The spirits of the world leaders
  will be delighted to welcome you;
  those who were kings of many nations before they died
  will stand up to welcome you.” (Source: Translation for Translators)