39:51 So, they suffered the evil of what they had earned. Those who transgressed from among these will suffer the evil of what they earned; they cannot escape.
Edip-Layth (Quran: A Reformist Translation)
Dictionaries
Ejtaal Arabic Almanac: Lane's Lexicon, Hans Wehr, Lisan al-Arab and others
And [did We not say,] when We caused Mount Sinai to quake above the children of Israel* as though it were a [mere] shadow, and they thought that it would fall upon them, "Hold fast with [all your] strength unto what We have vouchsafed you, and bear in mind all that is therein, so that you might remain conscious of God"?*