(ن) غَارَ يَغُوْرُ غَوْرًاghāra yaghūru ghawran (original form: غَوَرَ يَغْوُرُghawara yaghwuru): to go down into low ground; (of water) to sink into the earth and be absorbed. (This verb is not used in the Quran.)
غَوْرٌghawr (verbal noun (maṣdar) in the sense of an active participle (ism fāʿil)): sunk into the earth, deep (water). ﴿اَوْ يُصْبِحَ مَآؤُهَا غَوْرًا﴾ (Al-Kahf 18:41); ﴿قُلْ اَرَءَيْتُمْ اِنْ اَصْبَحَ مَآؤُكُمْ غَوْرًا﴾ (Al-Mulk 67:30)
غَارٌghār (noun (ism dhāt)): a cave. ﴿اِذْ هُمَا فِي الْغَارِ﴾ (At-Tawbah 9:40); مَغَارَةٌmaghārah pl. مَغٰرٰتٌmaghārāt (noun of place (ẓarf)): a place to go down into, a cave. ﴿اَوْ مَغٰرٰتٍ اَوْ مُدَّخَلًا﴾ (At-Tawbah 9:57)
Form IV (ifʿāl) اَغَارَ يُغِيْرُ اِغَارَةًaghāra yughīru ighāratan: to make a sudden raid upon the enemy, to plunder; مُغِيْرَةٌmughīrah pl. مُغِيْرٰتٌmughīrāt (active participle (ism fāʿil)): (horses) that make a raid. ﴿فَالْمُغِيْرٰتِ صُبْحًا﴾ (Al-ʿĀdiyāt 100:3)