وَيُسَمَّى مُتَمَكِّنًا
Translation: and it is called mutamakkin.
Mutamakkin is a technical name for the declinable noun defined here. It is not the ordinary meaning “powerful.”
Thus «زَيْدٌ» in «قَامَ زَيْدٌ» is both a declinable noun and an example of the mutamakkin class.
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وَيُسَمَّى مُتَمَكِّنًا
Translation: and it is called mutamakkin.
Mutamakkin is a technical name for the declinable noun defined here. It is not the ordinary meaning “powerful.”
Thus «زَيْدٌ» in «قَامَ زَيْدٌ» is both a declinable noun and an example of the mutamakkin class.