Reading from Ibn Aqil’s commentary (may Allah have mercy on him), with the Shaykh’s annotations: " .

The reader: " And if it is on three letters and its third letter is not the feminine taa, it is made diminutive based on its form, and nothing is restored to it, so you would say for *shak al-silah*: *shuyayk* ".

The Shaykh : We say *shuyayk* for it, why? Because the original of *shak al-silah* is *shawk* (thorn), because it is derived from *shawkah* (thorn), so the meaning of *shak al-silah* is: he who wields it and strengthens it. And from this is His saying, the Exalted: So then, *shak al-silah* is not a defective noun in grammar, meaning: its original is not *shaki al-silah*, or is it? Because the alif here is original, and if it were *shaki* with a yaa at the end, the alif would be extra. -Write this down- Because many people think that *shak al-silah* is defective, meaning that its end is a yaa but it was deleted, and the correct view is that it is not defective and that its end is the kaa, so its end is a sound noun, not a letter of weakness.