— no verb occurs from the bare triliteral (thulāthī mujarrad).
دَرَكٌdarak: for something to befall someone, to be overtaken. ﴿لَا تَخٰفُ دَرَكًا وَّلَا تَخْشٰى﴾ (Ṭā Hā 20:77)
دَرْكٌdark: a lower level, a depth. ﴿فِي الدَّرْكِ الْاَسْفَلِ مِنَ النَّارِ﴾ (An-Nisāʾ 4:145)
Form IV (ifʿāl) اَدْرَكَ يُدْرِكُ اِدْرَاكًاadraka yudriku idrākan: for something to reach its full term, as fruit ripens; with this basic sense it occurs in various meanings: (1) to attain, to overtake. ﴿لَا تُدْرِكُهُ الْاَبْصَارُ﴾ (Al-Anʿām 6:103); (2) to catch up with. ﴿اَيْنَ مَا تَكُوْنُوْا يُدْرِكْكُّمُ الْمَوْتُ﴾ (An-Nisāʾ 4:78)
مُدْرَكٌmudrak (passive participle, ism mafʿūl): overtaken, caught. ﴿اِنَّا لَمُدْرَكُوْنَ﴾ (Ash-Shuʿarāʾ 26:61)
Form VI (tafāʿul) تَدَارَكَ يَتَدَارَكُ تَدَارُكًاtadāraka yatadāraku tadārukan and اِدَّارُكًاiddārukan: to overtake one another, to catch up with one another. ﴿حَتّٰٓى اِذَا ادَّارَكُوْا فِيْهَا جَمِيْعًا﴾ (Al-Aʿrāf 7:38); ﴿لَوْلَآ اَنْ تَدٰرَكَهُۥ نِعْمَةٌ مِّنْ رَّبِّهِۦ﴾ (Al-Qalam 68:49)