67:29 Say: "He is the Most Gracious: we have attained to faith in Him, and in Him have we placed our trust; and in time you will come to know which of us was lost in manifest error."
Muhammad Asad (The Message Of Quran)
Dictionaries
Ejtaal Arabic Almanac: Lane's Lexicon, Hans Wehr, Lisan al-Arab and others
the while they will be running confusedly to and fro, with their heads upraised [in supplication], unable to look away from what they shall behold,* and their hearts an abysmal void.