Root غ ل ظ(g l Z) has 6 unique word forms and appears 13 times in the Quran.

English gloss Rude, Treat Harshly, Thick

Word Translation Occurrences
غَلِيظٗا solemn, strong 6
غَلِيظٖ severe 6
وَٱغۡلُظۡ and be stern 4
غِلَاظٞ stern 2
فَٱسۡتَغۡلَظَ then it becomes thick 2
غَلِيظٞ harsh 2
غِلۡظَةٗۚ harshness 2
غَلِيظَ (and) harsh 2