5.2.95
रसादिभ्यश्च
Operational rule vidhi
The affix मतुप् comes in the sense of 'whose it is' or 'in whom it is' after the प्रातिपदिक (Nominal Stem) रस etc.
Word by word (padaccheda)
Left context रसादिभ्यः pañcamī · bahuvacanaIndeclinable 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
रसादिभ्यः च
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The affix मतुप् comes in the sense of 'whose it is' or 'in whom it is' after the प्रातिपदिक (Nominal Stem) रस etc.
As रसवान्, रूपवान्, गन्धवान् ॥ Why this special sutra with regard to रसादि words, when they would have taken मतुप् by the last sutra? This prevents the application to these words of other affixes having the sense of मतुप् ॥ How do you form then रूपिणी कन्या, रूपिको दारकः ॥ These are rare forms. According to Patanjali this sutra is useless. Or the word रस &c, must denote qualities, perceivable by the organs of taste, touch &c, i. e. रस should mean taste, रूप form. Therefore the forms रूपिणी and रूपिकः are valid, meaning शोभायोग्यता ॥ So also रसिको तटः = भावयोगः, here रूप and रस do not mean 'form' and 'taste'. And all words of quality having one syllable are governed by this sutra, and form their derivative in मतुप् ॥ See 5.2.115.
1 रस, 2 रूप, 3 वर्ण, 4 गन्ध, 5 स्पर्श, 6 शब्द, 7 स्नेह, 8 भाव, 9 गुणात्, (गुणग्रहणं रसादीनां विशेषणम्), 10 एकाचः (स्ववत्) ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.