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What is the exact verbal noun (مصدر) form for Bab If'illaal using the 4-letter root ق-ش-ع-ر?

Derived Quadrilateral (with Hamzah) - Bab 2: If'inlaal & Bab 3: If'illaal

• اِقْشِعْرَارٌ
• اِبْرِنْشَاقٌ
• اِقْشَعَرَّ
• مُقْشَعِرٌّ