Ibtidāʾ here denotes a Form III verb with an independent lexical use that cannot be predicted merely from the inserted alif.
قَاسَى زَيْدٌ هٰذِهِ الشِّدَّةَ
Translation: Zayd endured this hardship.
The textbook relates the basic root's meaning to qaswah (hardness). In this construction the Form III sense is enduring distress, not engaging in a reciprocal confrontation.
LessonsSeven Semantic Properties of Form III (Mufāʿalah): Participation, Equivalence, Causing a State, and Independent UsesQuiz
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Property 6: Independent Lexical Meaning
Ibtidāʾ here denotes a Form III verb with an independent lexical use that cannot be predicted merely from the inserted alif.
قَاسَى زَيْدٌ هٰذِهِ الشِّدَّةَ
Translation: Zayd endured this hardship.
The textbook relates the basic root's meaning to qaswah (hardness). In this construction the Form III sense is enduring distress, not engaging in a reciprocal confrontation.