أَسْوَدُ (“black”) is originally an adjective on the أَفْعَل pattern. The operative combination here is adjectival status + verb-like pattern.
جَاءَ رَجُلٌ أَسْوَدُ
Translation: A black man came.
رَجُلٌ: nominative subject with ḍamma and tanwīn. أَسْوَدُ: nominative adjective modifying «رَجُلٌ», with ḍamma but no tanwīn.
The sentence is an instructional example; the book supplies the word «أَسْوَد».
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Causes of Diptote Status — ʿAdl and Waṣf
أَسْوَدُ (“black”) is originally an adjective on the أَفْعَل pattern. The operative combination here is adjectival status + verb-like pattern.
جَاءَ رَجُلٌ أَسْوَدُ
Translation: A black man came.
رَجُلٌ: nominative subject with ḍamma and tanwīn. أَسْوَدُ: nominative adjective modifying «رَجُلٌ», with ḍamma but no tanwīn.
The sentence is an instructional example; the book supplies the word «أَسْوَد».