grammarian who formulated 3,959 rules of Sanskrit morphology , known as the Aṣṭādhyāyī (अष्टाध्यायी) and with Tolkāppiyar , the 3rd century BCE grammarian of the Tamil work Tolkāppiyam . Pāṇini’s grammar is highly systematized and technical. Inherent in its analytic approach are the concepts of the phoneme , the morpheme ,