5.4.80
श्वसो वसीयःश्रेयसः
Operational rule vidhi
The affix अच् comes after the words 1. वसीयस् and 2. श्रेयस् when they follow the word श्वस् in a compound.
Word by word (padaccheda)
Left context श्वसः pañcamī · ekavacanaLeft context वसीयस्- श्रेयसः pañcamī · ekavacana
- 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
श्वसः वसीयस्-
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The affix अच् comes after the words 1. वसीयस् and 2. श्रेयस् when they follow the word श्वस् in a compound.
Thus श्वोवसीयसम्, श्वःश्रेयसम् ॥ These compounds belong to the class of Mayuravyansakadi 2.1.72 The word श्वः is usually employed in blessing or praising the object expressed by the second term. Thus श्वः श्रेयसम् ते भूयात् = शोभनं श्रेयस्ते भूयात् ॥ The word श्वोवसीयसम् is a synonym of श्वः श्रेयसम् ॥ The word वसीयः is derived from वसु meaning "praiseworthy", "rich", by adding the affix ईयसुन् 5.3.57.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.