6.3.20
स्थे च भाषायाम्
Operational rule vidhi
The Locative -7th case ending is not preserved before स्थ in the spoken language.
Word by word (padaccheda)
Right context स्थे saptamī · ekavacanaIndeclinable च avyayaRight context भाषायाम् saptamī · 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").
- Indeclinable An avyaya such as च "and", वा "optionally", न "not".
Full reading
स्थे च भाषायाम्
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The Locative -7th case ending is not preserved before स्थ in the spoken language.
Thus विषमस्थः, कूटस्थः, पर्वतस्थः ॥ But आखरेष्ठः, in the Veda, as in कुष्णोस्याखरेष्ठः ॥ स is changed to ष by 8.3.106.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.