ظ ل لẓ-l-l
(س) ظَلَّ يَظَلُّ ظَلًّا وَظُلُوْلًاẓalla yaẓallu ẓallan wa-ẓulūlan (original form: ظَلِلَ يَظْلَلُẓalila yaẓlalu): to remain continually; to be shaded by day. ﴿فَظَلَّتْ اَعْنَاقُهُمْ لَهَا خٰضِعِيْنَ﴾ (Ash-Shuʿarāʾ 26:4)
ظِلٌّẓill pl. ظِلَالٌẓilāl (noun, ism dhāt): shade, shadow. ﴿وَظِلٍّ مَّمْدُوْدٍ﴾ (Al-Wāqiʿah 56:30); ﴿فِيْ ظِلٰلٍ وَّعُيُوْنٍ﴾ (Al-Mursalāt 77:41)
ظُلَّةٌẓullah pl. ظُلَلٌẓulal: canopy; a shading cloud. ﴿فَاَخَذَهُمْ عَذَابُ يَوْمِ الظُّلَّةِ﴾ (Ash-Shuʿarāʾ 26:189)
Form II (tafʿīl) ظَلَّلَ يُظَلِّلُ تَظْلِيْلًاẓallala yuẓallilu taẓlīlan: to give shade. ﴿وَظَلَّلْنَا عَلَيْكُمُ الْغَمَامَ﴾ (Al-Baqarah 2:57)