शेषे प्रथमः

Operational rule vidhi

Where a form of the word other than अस्मद् or युष्मद् shows the same substance which is shown by the लकार, there the तिङन्तपद must be expressed using the प्रथमपुरुष प्रत्ययाs.

Word by word (padaccheda)

Right context शेषे saptamī · ekavacanaSubstitute / term prathamā · ekavacana

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").
Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.

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

See the table this defines: 3.4.78 तिङ् The 18 verb endings →

Full reading

शेषे

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

Commentary

In the other cases, viz. where 'thou' or 'I' are not the attendant words in agreement with the verb, there is the verbal termination called the Lowest (3rd person).
As पचति he cooks, पचतः they two cook. पचन्ति they cook.

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