6.2.35
संख्या
Operational rule vidhi
The numeral word standing as the first member of a द्वन्द समास , preserves its accent.
Word by word (padaccheda)
Substitute / term prathamā · ekavacana
- Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
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Full reading
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The numeral word standing as the first member of a द्वन्द समास , preserves its accent.
Thus ए꣡कादश, द्वा꣡दश, त्र꣡योदश or त्रयोद꣡श ॥ The word एक is derived from इण् by कन् affix (Unadi III.43) and has acute on the first 6.1.197. The त्रयस् is the substitute of त्रि 6.3.48 and has acute on the final.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.