स्तेनाद्यन्नलोपश्च

Operational rule vidhi

The affix यत् (यं) comes in the sense of 'nature thereof or action thereof' after the word स्तेन in the Genitive 6th-Case and न is elided before this affix.

Word by word (padaccheda)

Left context स्तेनात् pañcamī · ekavacanaSubstitute / term य prathamā · ekavacanaSubstitute / term नलोपः prathamā · ekavacanaIndeclinable 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.
Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
Indeclinable An avyaya such as च "and", वा "optionally", न "not".

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

Pink letters are it-markers (anubandhas), tags dropped by 1.3.9. Hover or tap one for the rule that marks it, or try the it-letter finder.

Full reading

स्तेनात् यत् नलोपः च

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

Commentary

The affix यत् (यं) comes in the sense of 'nature thereof or action thereof' after the word स्तेन in the Genitive 6th-Case and न is elided before this affix.
As स्तेनस्य भावः कर्म वा = स्तेयम् ॥ Some divide the sutra into two स्तेनात् ष्यञ् भवति (2) ततो यन्न लोपश्च as स्तैन्यम् and स्तेयम् ॥

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