7.1.78
नाभ्यस्ताच्छतुः
Operational rule vidhi
The participle affix शतृ (अत्-अन्त्) does not take the augment नुम् after a reduplicate अङ्ग (stem).
Word by word (padaccheda)
Indeclinable न avyayaLeft context pañcamī · ekavacanaTarget शतुः ṣaṣṭhī · ekavacana
- Indeclinable An avyaya such as च "and", वा "optionally", न "not".
- Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
- Target Ṣaṣṭhī (6th case): names what gets replaced, "in place of X" (1.1.49 षष्ठी स्थानेयोगा).
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Full reading
न शतुः
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The participle affix शतृ (अत्-अन्त्) does not take the augment नुम् after a reduplicate अङ्ग (stem).
Thus ददत्, ददतौ, ददतः, जक्षत्, जक्षतौ, जक्षतः, जाग्रत्, जाग्रतौ, जाग्रतः ॥ This is an exception to 7.1.70, and applies of course to sarvanamasthana or strong cases. The नुम् is to be read into this sutra from 7.1.70; for the negation of this sutra cannot apply to ई taught in the preceding sutra, for ई is never ordained after satri: therefore, though several other operations intervene, yet नुम् is to be read here.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.