7.2.69
सनिंससनिवांसम्
Operational rule vidhi
The form सनिवांसम् with सनि is irregularly formed.
Word by word (padaccheda)
Substitute / term सनिंससनिवांसम् 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
सनिंससनिवांसम्
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The form सनिवांसम् with सनि is irregularly formed.
This is derived from सनोति or सनति root. As अञ्जित्वाग्ने सनिं ससनिवांसम् ॥ The augment इट् is added, there is no change of अ of सन् to ए, nor the elision of the reduplicate before वस् ॥ The other form is संनिवांसम् when not preceded by सनिम् ॥ This form ससनिवांसम् is Vedic, in secular literature we have सैनिवांसम् ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.