7.4.28
रिङ् शयग्लिङ्क्षु
Operational rule vidhi
A ऋकारान्त-धातु get a रिङ्-आदेश in presence of 'श' प्रत्यय, यक्-प्रत्यय and आशीर्लिङ् लकार.
Word by word (padaccheda)
Substitute / term रिङ् prathamā · ekavacanaRight context शयग्लिङ्क्षु saptamī · bahuvacana
- Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
- 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").
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Full reading
रिङ् शयग्लिङ्क्षु
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
For the final short ऋ of a root, there is substituted रि before the present character अ (श) before the Passive character य् and before the augment यास् in the Benedictive.
The word लिङि in the aphorism is qualified by the phrase यकारादौ सार्वधातुके ॥ A Lin affix which begins with a य and is not a Sarvadhatuka, is necessarily the augment यास् of the Benedictive. Thus श-आ द्रियते and आ घ्रियते (the व् comes by 6.4.77). यक्-क्रियते, ह्रियते ॥ लिङ्-क्रियात् and ह्रियात् ॥ This short रि debars the long री of the last. The word non-Sarvadhatuka being understood, the rule does not apply to the Potential, as बिभृयात् ॥ The यि 7.4.22 is understood here also, therefore when the Benedictive affix does not begin with य्, the rule does not apply, as कृषीष्ट, हृषीष्ट ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.