Following are a number of back-translations as well as a sample translation for translators of Isaiah 14:16:

• Kupsabiny: “Those who see you will stare at you,
  and ask themselves,
  ‘So is this the person who disturbed countries
  and made kings tremble?” (Source: Kupsabiny Back Translation)
• Newari: “Those who have died will look at you carefully
  and question [lit.: ask] you like this,
  "What! This isn’t the one who shook the earth
  and threatened kingdom after kingdom, is it?” (Source: Newari Back Translation)
• Hiligaynon: “The dead-ones will-look-closely at you (sing.) and they will-say, ‘It is not so that this is the man who shook the people of the earth and made- the kingdoms -terrified?” (Source: Hiligaynon Back Translation)
• English: “The other dead people there stare at you;
  they wonder what happened to you.
  They say, ‘Is this the man who caused the earth to shake
  and caused the people in many kingdoms to tremble?” (Source: Translation for Translators)