8.4.38
पदव्यवायेऽपि
Operational rule vidhi
The न् is not changed to ण् when a पद intervenes between the cause of the change and the word containing the न्.
Word by word (padaccheda)
Right context - व्यवाये saptamī · ekavacanaIndeclinable अपि avyaya
- Right context Saptamī (7th case): "when X follows", the operation applies to what precedes (1.1.66 तस्मिन्निति निर्दिष्टे पूर्वस्य). Also a condition or domain ("in the sense of").
- Indeclinable An avyaya such as च "and", वा "optionally", न "not".
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Full reading
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Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The न् is not changed to ण् when a पद intervenes between the cause of the change and the word containing the न्।
The word पदव्यवाय is a compound meaning पदेन व्यवाय 'separated by a Pada'. Thus माषकुम्भवापेन, चतुरङ्गयोगेन, प्रावनद्धम्, पर्यवनद्धम्, प्रगान्नयामः, परिगान्नयामः ॥ Here the Padas कुम्भ, अङ्ग, अव &c, intervening, the change does not take place.
Vart:- It should be stated when there is separation by a Pada, except in a Taddhita. Prohibition does not apply to words like आर्द्रगोमयेण, शुष्कगोमयेण ॥ Here गो takes the affix मयट् by 4.3.145, and the word गो is a Pada by 1.4.17, and it intervenes between मय and the first word. The author of Mahabhashya however does not approve of this Vartika. According to him the word पदव्यवाय means पदे व्यवाय ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.