ق ر عq-r-ʿ
(ف) قَرَعَ يَقْرَعُ قَرْعًاqaraʿa yaqraʿu qarʿan: to knock hard, to strike. (This verb is not used in the Quran.)
قَارِعَةٌqāriʿah (active participle, ism fāʿil): that which knocks, i.e. a severe calamity that makes hearts quake; «اَلْقَارِعَةُal-qāriʿat» is one of the names of the Day of Judgement, and the surah takes its name from it. ﴿اَلْقَارِعَةُ مَا الْقَارِعَةُ﴾ (Al-Qāriʿah 101:1–2); ﴿تُصِيْبُهُمْ بِمَا صَنَعُوْا قَارِعَةٌ﴾ (Ar-Raʿd 13:31)