كَـ«شَمَّرَ» وَ«ضَرَبَ».
Translation: Such as “shammara” and “ḍaraba.”
The book is referring to forms adopted from verbs as proper names. Merely uttering the verb ḍaraba does not make it a diptote: it must actually be used as a noun/name.
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The Book’s First Two Examples
Diptote Causes — Verb Patterns and Their Conditions
كَـ«شَمَّرَ» وَ«ضَرَبَ».
Translation: Such as “shammara” and “ḍaraba.”
The book is referring to forms adopted from verbs as proper names. Merely uttering the verb ḍaraba does not make it a diptote: it must actually be used as a noun/name.