Nirukta, Phonetic Variants, and Vedic Dhātu–Svara Taxonomy
द्वाविँशतिरिहोद्दिष्टा धातवो ह्वादिके गणे । परस्मैपदिनः प्रोक्ता दिवाद्याः पंचविंशतिः ॥ ४८ ॥
dvāviṃśatirihoddiṣṭā dhātavo hvādike gaṇe | parasmaipadinaḥ proktā divādyāḥ paṃcaviṃśatiḥ || 48 ||
Here, twenty-two verbal roots (dhātu) are enumerated in the Hvādika group; and twenty-five beginning with Divādi are declared to be parasmaipada, employing the active set of endings.
Narada
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It highlights Vyākaraṇa (grammar) as a Vedaṅga: precise knowledge of language supports correct understanding and transmission of Dharma-oriented teachings.
Indirectly: by emphasizing disciplined Vedic study (like dhātu-classes and usage), it supports accurate recitation and comprehension of sacred texts that nourish Viṣṇu-bhakti and right practice.
Vyākaraṇa: classification of verbal roots (dhātus) into gaṇas and their pada-usage (Parasmaipada), a practical framework for correct Sanskrit forms in study and ritual recitation.