Following are a number of back-translations as well as a sample translation for translators of Jeremiah 50:9:

• Kupsabiny: “I am stirring up big nations,
  who come from the side of North,
  all coming to join against the land of Babylon.
  These people are expert archers
  and they have prepared their soldiers well.
  They will fight Babylon
  until they have defeated and captured (them).” (Source: Kupsabiny Back Translation)
• Hiligaynon: “For I will- have Babilonia -attack by the group of the mighty nations from the north. They will-attack Babilonia and they would-capture it. They are-skillful archers that truly hit their mark/[lit. their what-they-are-aiming-for-with-their-bow-and-arrow].” (Source: Hiligaynon Back Translation)