7.4.95
अत् स्मृदॄत्वरप्रथम्रदस्तॄस्पशाम्
Operational rule vidhi
Short अ is substituted for the vowel of the reduplicate in the reduplicated Aorist of the Causative of the roots 1. स्मृ 2. दॄ 3. त्वर 4. प्रथ 5. म्रद 6. स्तॄ and 7. स्पश्.
Word by word (padaccheda)
Substitute / term अत् prathamā · ekavacanaTarget स्मृदृत्वरप्रथम्रदस्तॄस्पशाम् ṣaṣṭhī · bahuvacana
- Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
- Target Ṣaṣṭhī (6th case): names what gets replaced, "in place of X" (1.1.49 षष्ठी स्थानेयोगा).
Dotted words are technical terms. Hover or tap one to see its card.
Full reading
अत् स्मृदृत्वरप्रथम्रदस्तॄस्पशाम्
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
स्मृदृत्वरप्रथम्रदस्तॄस्पशाम् → अत्
Replace smṛdṛtvaraprathamradastṝspaśām with at. Inherited words (anuvṛtti) may add further conditions.
Commentary
Short अ is substituted for the vowel of the reduplicate in the reduplicated Aorist of the Causative of the roots 1. स्मृ 2. दॄ 3. त्वर 4. प्रथ 5. म्रद 6. स्तॄ and 7. स्पश्।
Thus असस्मरत्, अददरत्, अतत्वरत्, अपप्रथत्, अमम्रदत्, अपस्पशत् ॥ This debars the इ which would have come under 7.4.93. The short अ indicates that it is not to be lengthened by 7.4.94, as अददरत् ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.