3.3.27
प्रे द्रुस्तुस्रुवः
Operational rule vidhi
The affix घञ् comes after the roots 1. द्रु 'to run' 2. स्तु 'to praise' 3. श्रु 'to move and hear' when the word in composition is प्र.
Word by word (padaccheda)
Right context प्रे saptamī · ekavacanaLeft context द्रु- स्तु- स्रुवः pañcamī · 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").
- Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
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Full reading
प्रे द्रु-
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The affix घञ् comes after the roots 1. द्रु 'to run' 2. स्तु 'to praise' 3. श्रु 'to move and hear' when the word in composition is प्र।
As प्रद्रावः, प्रस्तावः, प्रस्रावः। But not so in द्रवः, स्तवः and स्रवः ।
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.