Al-muqaddimah Al-ajurrumiyyah [on the Science of Arabic Grammar]
The Chapter on the TAMYĪZ
[^77]
The Tamyīz[^78] is an Ism that is Manṣūb and clarifies what is vague as regards essences or entities, like when you say:
تصبّب زيدٌعرقاً (Zayd is pouringsweat i.e. he is perspiring)
تفقأ بكرٌ شحماً (Bakr expandedin fat )
طاب محمدٌنفساً (Muhammad is amicablein spirit )
اشتريْتُ عشرينغلاماً (I bought twentyservants )
ملكتُ تسعيننعجةً (I owned ninetyewes )
زيدٌ أكرم منكأباً وأجمل منكوجهاً (Zayd is more noble than youfather -wise and more handsome than youface -wise)
It does not occur except as an Ism Nakirah and does not occur except after the completion of the Kalām.