Translation of "Famously" in Arabic

Because light-year is one of those famously confusing words in astronomy.

لأن "سنة ضوئية" هي إحدى تلك الكلمات المشهورة برباكتها في علم الفلك.

This Goth was possibly none other than King Cniva, who had famously destroyed the army

ربما لم يكن هذا القوطي سوى الملك كنيفا ، الذي اشتهر بتدمير جيش