1.2.71
श्वशुरः श्वश्र्वा
Operational rule vidhi
The word श्वशुर 'father-in-law', is optionally only retained, when spoken of along with श्वशुरू 'mother-in-law'.
Word by word (padaccheda)
Substitute / term श्वशुरः prathamā · ekavacanaWith / by श्वश्र्वा tṛtīyā · ekavacana
- Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
- With / by Tṛtīyā (3rd case): accompaniment or means.
Full reading
श्वशुरः श्वश्र्वा
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The word श्वशुर 'father-in-law', is optionally only retained, when spoken of along with श्वशुरू 'mother-in-law'.
Thus श्वशुरः + श्वश्रू may be either श्वशुरौ 'father-in-law and mother in-law,' or श्वश्रश्वशुरौ ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.