4.1.43
शोणात् प्राचाम्
Operational rule vidhi
The affix ङीष् is used in the feminine according to the opinion of the Eastern Grammarians after the word शोण.
Word by word (padaccheda)
Left context शोणात् pañcamī · ekavacanaTarget प्राचाम् ṣaṣṭhī · bahuvacana
- Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
- Target Ṣaṣṭhī (6th case): names what gets replaced, "in place of X" (1.1.49 षष्ठी स्थानेयोगा).
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Full reading
शोणात् प्राचाम्
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The affix ङीष् is used in the feminine according to the opinion of the Eastern Grammarians after the word शोण।
Thus शोणी or शोणा वडवा 'a red or bay mare'. By Phit Sutra II.10 referred to already in 4.1.39 the udatta in शोणा falls on the first syllable, and by 4.1.40 it would have taken ङीष् always; but the present sutra makes a niyama rule and restricts the application of ङीष् according to the opinion of Eastern Grammarians only, and not of others.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.