The Kitāb and its setting
Sībawayh’s eighth-century Kitāb is a foundational surviving work of Arabic grammar, associated with early Iraqi scholarship. It did not appear without predecessors or debate. The Cambridge History of Linguistics describes its attention to roots, dependency-like relations, and different kinds of sentence organization. Later grammars were shaped by it, but their technical definitions should not automatically be read back into every line of the Kitāb.
The traditions of Qurʾānic interpretation, poetry and reported speech matter to the evidence used by early grammarians. A quoted example can serve to establish a permitted expression, an analogy or an exception. Ask which role it plays rather than treating all examples as tokens from one homogeneous corpus.
Names, actions and particles
The major Arabic labels ism, fiʿl and ḥarf are often rendered “noun,” “verb” and “particle.” The first can have a broader range than English school “noun,” and ḥarf is not simply a punctuation sign. The Brill study of parts of speech shows how later subdivisions and notions of ʿāmil, a governing factor, operate within the tradition. State the Arabic term before giving an English comparison.
Arabic grammatical analysis often asks why an ending appears in a particular construction. The term iʿrāb commonly concerns inflectional endings and their syntactic conditioning. That is more specific than saying only that Arabic has “cases.” To interpret one form, identify the whole construction, the alleged governing relation and any alternative analysis offered by a commentator.
A source-led exercise
Use a scholarly edition or study that quotes a short passage from the Kitāb. Copy the Arabic technical term, translation and example on separate lines. Note whether the explanatory label is Sībawayh’s, from a later commentator, or from the modern scholar. If a word is called ism, list the behavior in that example that motivates the label.
Practice: a modern note translates ʿāmil as “governor.” Explain what additional evidence you need before identifying it with a modern dependency head. The answer should include the relation being explained, the affected form and the author whose terminology is used.
Modern-language examples on this page clarify a linguistic pattern. They do not establish unattested sounds or forms for an ancient language. Follow the cited sources below and keep editorial readings separate from the surviving trace.