2.3.11
प्रतिनिधिप्रतिदाने च यस्मात्
Operational rule vidhi
The 5th case-affix (Ablative) is used after whatsoever is governed by a कर्मप्रवचनीयाः (1.4.83) in the sense of 'substitute' or 'exchange' -- प्रतिः प्रतिनिधिप्रतिदानयोः (1.4.92).
Word by word (padaccheda)
Substitute / term प्रतिनिधि- प्रतिदाने prathamā · dvivacanaIndeclinable च avyayaLeft context यस्मात् pañcamī · ekavacana
- Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
- 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.
Full reading
प्रतिनिधि-
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The 5th case-affix (Ablative) is used after whatsoever is governed by a कर्मप्रवचनीयाः 1.4.83 in the sense of 'substitute' or 'exchange' -- प्रतिः प्रतिनिधिप्रतिदानयोः 1.4.92.
Ex. अभिमन्युरर्जुनतः प्रति 'Abhimanyu is the representative of Arjuna.' माषानस्मैतिलेभ्यः प्रतियच्छति 'he exchanges mashas for this sesamum.' See 1.4.92 for an explanation of प्रतिनिधि and प्रतिदान.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.