Nirukta, Phonetic Variants, and Vedic Dhātu–Svara Taxonomy
सप्त पंचाशदधिकास्तुदादौ धातवः शतम् । स्वरितेतो रुधोनंदा परस्मैभाषितः कृती ॥ ६३ ॥
sapta paṃcāśadadhikāstudādau dhātavaḥ śatam | svariteto rudhonaṃdā parasmaibhāṣitaḥ kṛtī || 63 ||
ในหมวดทุทาทิ มีธาตุทั้งสิ้นหนึ่งร้อยห้าสิบเจ็ด. ธาตุที่ขึ้นต้นด้วย “สวรฺ” และธาตุอย่าง “รุธฺ” “นันทฺ” ถูกอธิบายว่าใช้ผันในปรัสไมปท (รูปฝ่ายกระทำ) และรับปัจจัยกฤตเป็นกฤทันต์
Narada (teaching in a technical/śāstric enumeration, within the Narada–Sanatkumara dialogue frame)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It presents śāstric precision as part of dharma: mastery of Vyākaraṇa (a Vedāṅga) supports correct mantra-recitation, clear understanding of scripture, and disciplined study—seen as aids to the mokṣa-oriented life.
Indirectly: by emphasizing correct linguistic foundations (dhātus, pāda), it safeguards accurate transmission and chanting of devotional hymns and names of the Lord, which are central to bhakti practice.
Vyākaraṇa: it notes the count of roots in the Tudādi gaṇa and indicates parasmaipada (active) usage and kṛt-derivation (kṛdanta formation) for specified roots—core tools for correct conjugation and word-formation.