4.1.12
अनो बहुव्रीहेः
Operational rule vidhi
The affix ङीप् is not used to denote the feminine after a बहुव्रीहि समास ending in अन्.
Word by word (padaccheda)
Left context अनः pañcamī · ekavacanaLeft context बहुव्रीहेः pañcamī · ekavacana
- Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
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Full reading
अनः बहुव्रीहेः
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The affix ङीप् is not used to denote the feminine after a बहुव्रीहि समास ending in अन्।
This refers to those Bahuvrihi compounds in which the penultimate is not elided. Of the Bahuvrihi compounds which lose their penultimate letter, it is optional to employ this affix or not; as it will be taught in 4.1.28. Thus सुपर्वन् 'possessed of beautiful joints' is both masculine and feminine. As सुपर्वा, सुपर्वाणौ, सुपर्वाणः; so also सुशर्मा, सुशर्माणौ and सुशर्माणः ॥ In these cases the penultimate अ of वन् or मन् is not elided. See 6.4.137.
Why do we say "after Bahuvrihi compounds" ? Because after any other compouds, this rule will not apply. As अतिराजन् is an Avyayibhava compound, its feminine will be अतिराजी ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.