3.1.136
आतश्चोपसर्गे
Operational rule vidhi
Also after a verb ending in long आ when there is a preposition along with it, the affix क is placed.
Word by word (padaccheda)
Left context आतः pañcamī · ekavacanaIndeclinable च avyayaRight context 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.
- Indeclinable An avyaya such as च "and", वा "optionally", न "not".
- 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").
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Full reading
आतः च
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
Also after a verb ending in long आ when there is a preposition along with it, the affix क is placed.
This is an apavada of 3.1.40, and debars the affix ण. Thus प्रस्था + क = प्रस्थ + अ = प्रस्थः 6.4.64. सुग्लै + क = सुग्ल + अ = सुग्लः 'very weary' (आ substituted for ऐ by (VI.I.45.)) सुम्लै + क = सुम्ला + अ = सुम्लः 'very languid'.
The final आ is dropped before the affix क by rule 6.4.64. There is elision of long आ when an ardhadhatuka affix follows beginning with a vowel and having an indicatory क or ङ.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.