اِوْتَقَدَ → اِتْتَقَدَ → اِتَّقَدَ
The root is و ق د, in Form VIII. Original wāw appears immediately next to the form's added tāʾ.
1. Wāw is substituted by tāʾ, creating a sequence of two tāʾs.
2. The two are assimilated to yield اِتَّقَدَ.
Its verbal noun is اِتِّقَادٌ, also featuring the doubled tāʾ. The underlying root nevertheless remains wāw-initial.
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Deriving اِتَّقَدَ
Weak-Initial Roots: Elision, Substitution, Assimilation and Short Paradigms
اِوْتَقَدَ → اِتْتَقَدَ → اِتَّقَدَ
The root is و ق د, in Form VIII. Original wāw appears immediately next to the form's added tāʾ.
1. Wāw is substituted by tāʾ, creating a sequence of two tāʾs.
2. The two are assimilated to yield اِتَّقَدَ.
Its verbal noun is اِتِّقَادٌ, also featuring the doubled tāʾ. The underlying root nevertheless remains wāw-initial.