8.3.30
नश्च
Operational rule vidhi
In the context of संहिता, a सकार present after a पदान्त नकार optionally gets a धुट् आगम.
Word by word (padaccheda)
Left context नः pañcamī · ekavacanaIndeclinable च avyaya
- Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
- Indeclinable An avyaya such as च "and", वा "optionally", न "not".
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Full reading
नः च
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
After a word ending in न् , धुट् is optionally the augment to a word beginning with स्।
Thus भवान् त्साये, महान् त्साये or भवान् साये, महान् साये ॥ The ध् of the augment becomes त् by 8.4.55. This त् is asiddha 8.2.1, and therefore त् is not changed to रु by 8.3.7. This is the reason why the augment is exhibited as धुट् and not तुट् ॥ In sutra 8.3.29 तुट् would have done as well but not so here. This view of the Kasika, however, is not approved by Padamanjari. The न् can never be changed to रु here, because त् is followed by स् which is not an अम् letter. The word अम्परे is understood in 8.3.7. In fact, तुट् would have been a better augment.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.