ٱبْيَضَّتْ
Appears 2 times in the Quran.
(Root: بيض)
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And as to those whose faces turn white, they shall be in Allah's mercy; in it they shall-abide.
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12:84 وَتَوَلَّىٰ عَنْهُمْ وَقَالَ يَٰٓأَسَفَىٰ عَلَىٰ يُوسُفَ وَٱبْيَضَّتْ عَيْنَاهُ مِنَ ٱلْحُزْنِ فَهُوَ كَظِيمٌ
And he turned away from them, and said: O my sorrow for Yusuf! and his eyes became white on account of the grief, and he was a repressor (of grief).