7.1.55
षट्चतुर्भ्यश्च
Operational rule vidhi
The आम्-प्रत्यय present after a षट्-संज्ञक word or after the word चतुर् gets a नुट्-आगम.
Word by word (padaccheda)
Left context - चतुर्भ्यः 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".
Dotted words are technical terms. Hover or tap one to see its card.
Full reading
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Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The augment न् is added before the Genitive 6th-Case plural ending आम् after the numerals called षष् and after चतुर्।
As षण्णाम्, पञ्चानाम्, 6.4.7, सप्तानाम्, नवानाम्, दशानाम्, चतुर्णाम् ॥ A numeral ending in र् is not 'shash', hence the specific mention of चतुर ॥
This rule applies to compounds ending with these numerals, when these latter are the principal member, as परमषण्णाम्, परमपंचानाम्, परमचतुर्णाम्, but, प्रियषषाम्, प्रियपञ्चाम्, प्रियचतुराम् where the Numerals are secondary (upasarjana).
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.