Following are a number of back-translations as well as a sample translation for translators of Ecclesiastes 12:2:

• Kupsabiny: “That is when the sun grows dim,
  as well as the moon and stars,
  and the sky/land becomes cloudy/overcast.” (Source: Kupsabiny Back Translation)
• Newari: “Before darkness covers the light of the sun and light of the moon,
  before the moon and the stars become dark and before rain comes from the clouds.” (Source: Newari Back Translation)
• Hiligaynon: “Remember him before the light of the sun, moon and stars grows-dark on you (sing.), and while not yet to-grow-dark on you (sing.) your (sing.) surrounding as-if (it is) always darkened by a dark-cloud.” (Source: Hiligaynon Back Translation)