LessonsFinal Characteristics of Derived Forms: Ifʿīlāl, Ifʿilāl, Faʿlala, Tafaʿlala, and Related PatternsQuiz

The source notes a semantic correspondence with Istifʿāl among the selected characteristics of Faʿlala, while treating some related uses as rare.
Correspondence refers to a particular lexical relationship, not the elimination of the distinction between two morphological patterns.
An unusual example may be learned and explained without turning it into a general license to form new verbs on the same analogy.

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Faʿlala: Semantic Correspondence and Rarity

Final Characteristics of Derived Forms: Ifʿīlāl, Ifʿilāl, Faʿlala, Tafaʿlala, and Related Patterns

The source notes a semantic correspondence with Istifʿāl among the selected characteristics of Faʿlala, while treating some related uses as rare.
Correspondence refers to a particular lexical relationship, not the elimination of the distinction between two morphological patterns.
An unusual example may be learned and explained without turning it into a general license to form new verbs on the same analogy.