Stem ظِلَٰلُ has 3 unique word forms and appears 3 times in the Quran.

Word Translation Occurrences
ظِلَٰلُهُۥ their shadows 2
ظِلَٰلُهَا (are) its shades 2
وَظِلَٰلُهُم and (so do) their shadows 2