6.3.79
ग्रन्थान्ताधिके च
Operational rule vidhi
स is substituted for सह when it has the sense of 'up to the end'.
Word by word (padaccheda)
Right context ग्रन्थान्ताधिके saptamī · ekavacanaIndeclinable च avyaya
- 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
ग्रन्थान्ताधिके च
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
स is substituted for सह when it has the sense of 'up to the end'.
Thus सकलं = कलान्तं ज्योतिषमधीते ॥ So also समुहूर्तम् = (मुहूर्तान्तम्) ॥ स संग्रह (= संग्रहान्तम्) व्याकरणमधीते ॥ These are all Avyayibhava compounds by अन्तवचने 2.1.6. Therefore, when a word, denoting time, is the second member, सह would not be changed to स, because of the prohibition in 6.3.81. The present sutra removes that prohibition by anticipation, with regard to time-denoting words even, when the meaning is that 'of the end of a book'. When the sense is that of 'more', we have सद्रोणाखारी, समाषः कार्षापणः सकाकिणीको माषः ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.