ص ک کṣ-k-k
(ن) صَكَّ يَصُكُّ صَكًّاṣakka yaṣukku ṣakkan (original form: صَكَكَ يَصْكُكُṣakaka yaṣkuku): to strike hard, to slap, to collide. Only once in the Quran, and that in the account of the astonishment of Sārah (peace be upon her): ﴿فَصَكَّتْ وَجْهَهَا وَقَالَتْ عَجُوْزٌ عَقِيْمٌ﴾ (Adh-Dhāriyāt 51:29) — i.e. she struck her face.