3.3.82
करणेऽयोविद्रुषु
Operational rule vidhi
The affix अप् comes after the verb हन् 'to kill' when the words अयस् , वि or द्रु are in composition with it, when the word so formed is related to the verb as an instrument and घन् is the substitute.
Word by word (padaccheda)
Right context saptamī · ekavacanaRight context अयस्- वि- द्रुषु saptamī · bahuvacana
- 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
अयस्-
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The affix अप् comes after the verb हन् 'to kill' when the words अयस् , वि or द्रु are in composition with it, when the word so formed is related to the verb as an instrument and घन् is the substitute.
As अयोघनः 'a forge-hammer' (whereby the iron is destroyed); विघनः 'a mallet'; द्रुघनः 'an axe'. Some write द्रुघणः, the न being changed into ण either by rule 8.4.3 or by including this word in the class of आरोहणादि 4.2.80.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.