विभाषा ङिश्योः

Operational rule vidhi

If a भसंज्ञक अङ्ग end in the word 'अन्' and is followed by the ङि or शी प्रत्यय, then the 'अ' of this 'अन्' is omitted optionally.

Word by word (padaccheda)

Substitute / term prathamā · ekavacanaRight context ङिश्योः saptamī · dvivacana

Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
Right context Saptamī (7th case): "when X follows", the operation applies to what precedes (1.1.66 तस्मिन्निति निर्दिष्टे पूर्वस्य). Also a condition or domain ("in the sense of").

Dotted words are technical terms. Hover or tap one to see its card.

Full reading

ङिश्योः

Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.

Commentary

In a अङ्ग (stem) ending in अन् , the अ is optionally elided before the Locative -7th case ending इ before the ending शी (ई) of the Nominative 1st-Case and Accusative-2nd case dual Neuter.
As राज्ञि or राजनि, साम्नि or सामनि, साम्नी or सामनी 7.1.19.

Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.