4.2.122
प्रस्थपुरवहान्ताच्च
Operational rule vidhi
The affix वुञ् comes in the remaining senses after a वृद्ध word denoting a locality and ending with 1. प्रस्थ 2. पुर or वह.
Word by word (padaccheda)
Left context प्रस्थ- पुर- वह- अन्तात् 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
प्रस्थ-
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The affix वुञ् comes in the remaining senses after a वृद्ध word denoting a locality and ending with 1. प्रस्थ 2. पुर or वह।
This debars छ 4.2.114. Thus मालाप्रस्थकः, नान्दीपुरकः, कान्तिपुरकः, पैलुवहकः, फाल्गुनीवहकः ॥
The words ending in पुर would have taken the affix वुञ् by the next sutra also, but as that sutra is restricted to the countries of the East, this sutra is general in its scope.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.