नपुंसकादन्यतरस्याम्

Operational rule vidhi

The affix टच् comes optionally after an अव्ययीभाव समास ending with a neuter word whose final syllable is अऩ्.

Word by word (padaccheda)

Left context नपुंसकात् pañcamī · ekavacanaRight context अन्यतरस्याम् saptamī · ekavacana

Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
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

नपुंसकात् अन्यतरस्याम्

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

Commentary

The affix टच् comes optionally after an अव्ययीभाव समास ending with a neuter word whose final syllable is अऩ्।
The word अन् is understood here also. The word 'Neuter' qualifies, the second i. e. last term of the compound. This allows option, where as the previous sutra had made it compulsory. Thus प्रतिचर्मम्, or प्रतिचर्म, उपचर्मम् or उपचर्म ॥

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