4.2.121
धन्वयोपधाद्वुञ्
Operational rule vidhi
The affix वुञ् comes in the remaining senses after a वृद्ध word denoting a locality which has the letter य as its penultimate and after a वृद्ध place name denoting a waste or desert place.
Word by word (padaccheda)
Left context धन्व- य- pañcamī · ekavacanaSubstitute / term वु prathamā · ekavacana
- Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
- Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
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Pink letters are it-markers (anubandhas), tags dropped by 1.3.9. Hover or tap one for the rule that marks it, or try the it-letter finder.
Full reading
धन्व-
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 which has the letter य as its penultimate and after a वृद्ध place name denoting a waste or desert place.
The words वृद्धात् and देशे are understood here. The word धन्व means a waste or desert. Thus पारेधन्वकः, ऐरावतकः are examples of धन्व ॥ Similarly सांकाश्यकः and काम्पिल्यकः are examples of य penultimate.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.