nonkoersi
Nonkoersi is a term used in linguistics to describe the process by which a word changes its grammatical class without any change in its form. This is a common phenomenon in many languages, including English. For example, the word "run" can be a verb (He likes to run) or a noun (He went for a run). Similarly, "book" can be a noun (Read this book) or a verb (Book your tickets now).
This process is distinct from inflection, where a word changes its form to indicate grammatical information
The study of nonkoersi is important for understanding how languages evolve and adapt. It highlights the flexibility