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