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What is the clearest structural marker of اِجْلَوَّذَ in this level?

Derived Trilateral - Bab 6: If'ee'aal & Bab 7: If'i'laal

• A doubled Waw before the final root letter
• A silent Noon at the beginning
• An internal Alif after the Ayn-letter
• A Taa after the first root letter