4.1.108
वतण्डाच्च
Operational rule vidhi
The affix यञ् comes in the sense of a गोत्र (Patronymic) descendant after the word वतण्ड when meaning a descendant of अङ्गिरस.
Word by word (padaccheda)
Left context वतण्डात् pañcamī · ekavacanaIndeclinable च avyaya
- 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".
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Full reading
वतण्डात् च
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The affix यञ् comes in the sense of a गोत्र (Patronymic) descendant after the word वतण्ड when meaning a descendant of अङ्गिरस।
Thus वातण्ड्यः = आंगिरसः, otherwise वातण्डः ॥
The word वतण्ड occurs both in the Gargadi class 4.1.105 and in the Sivadi class 4.1.112. It would have taken both affixes अञ् and अण्. The present sutra declares that when it means an Angirasa, then वतण्ड will not take अण् of the शिवादि class : and when it does not mean Angirasa, then it takes both these affixes e. g. वातंड्यः and वातंडः any descendant of Vatanda.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.