Nirukta, Phonetic Variants, and Vedic Dhātu–Svara Taxonomy
तत्करोति तदाचष्टे हेतुमत्यपि णिर्मतः । धात्वर्थे कर्तृकरणाञ्चित्राद्याश्चापि धातवः ॥ ७३ ॥
tatkaroti tadācaṣṭe hetumatyapi ṇirmataḥ | dhātvarthe kartṛkaraṇāñcitrādyāścāpi dhātavaḥ || 73 ||
‘ಅದು ಅದನ್ನು ಮಾಡುತ್ತದೆ’ ‘ಅದು ಅದನ್ನು ತಿಳಿಸುತ್ತದೆ’—ಹೀಗೆ ಹೇತುಮತಿ (ಪ್ರೇರಣಾರ್ಥ) ಇದ್ದರೂ ಧಾತುವಿನ ಲಕ್ಷಣ ನಿರ್ಧರಿಸಲಾಗಿದೆ. ಧಾತ್ವರ್ಥದಲ್ಲಿ ಕರ್ತೃ‑ಕರಣ ಪ್ರಧಾನವಾದವುಗಳೂ, ‘ಚಿತ್ರ’ ಮೊದಲಾದ ವೈವಿಧ್ಯಮಯ ಧಾತುಗಳೂ ಇವೆ.
Sanatkumara (teaching Narada in a technical exposition aligned with Vyakarana)
Vrata: none
Primary Rasa: shanta
Secondary Rasa: none
It frames precise speech (śabda) and correct understanding of action (karma) through Vyākaraṇa: knowing how roots convey agency and means supports clarity in dharma-practice and removes confusion that obstructs mokṣa-oriented discernment.
Indirectly: Bhakti is strengthened when scripture is understood without distortion. This verse emphasizes disciplined interpretation of words (dhātu-artha, causative sense), which protects devotional teachings from misreading.
Vyākaraṇa (grammar): classification of verbal-root meanings, including causative (hetumati) formation and how roots can denote agent (kartṛ) and instrument (karaṇa) as part of semantic analysis.