8.1.20
युष्मदस्मदोः षष्ठीचतुर्थीद्वितीयास्थयोर्वान्नावौ
Operational rule vidhi
dual of युष्मद् and अस्मद् are substituted वाम and नौ respectively .
Word by word (padaccheda)
Target युष्मदस्मदोः ṣaṣṭhī · dvivacanaTarget षष्ठीचतुर्थीद्वितीयास्थयोः ṣaṣṭhī · dvivacanaSubstitute / term वान्नावौ prathamā · dvivacana
- Target Ṣaṣṭhī (6th case): names what gets replaced, "in place of X" (1.1.49 षष्ठी स्थानेयोगा).
- Substitute / term Prathamā (1st case): in operational rules, the substitute or the thing introduced; in definitions, the term or its referent.
Dotted words are technical terms. Hover or tap one to see its card.
Full reading
युष्मदस्मदोः षष्ठीचतुर्थीद्वितीयास्थयोः वान्नावौ
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
युष्मदस्मदोः षष्ठीचतुर्थीद्वितीयास्थयोः → वान्नावौ
Replace yuṣmadasmadoḥ ṣaṣṭhīcaturthīdvitīyāsthayoḥ with vānnāvau. Inherited words (anuvṛtti) may add further conditions.
Commentary
dual of युष्मद् and अस्मद् are substituted वाम and नौ respectively ।
All the three sutras पदस्य, पदात् and अनुदात्तं सर्वमपादादौ are applicable here. Thus ग्रामो वां स्वम् । जनपदो नौ स्वम् । ग्रामो वां दीयते । जनपदो नौ दीयते । ग्रामो वां पश्यति । जनपदो नौ पश्यति ॥
These two वाम् and नौ come in the Dual only, because other substitutes have been taught for the Singular and Plural in the two subsequent sutras.
Why do we say "for the Genitive, Dative and Accusative"? In other cases there will be no substitution. As, ग्रामो युवाभ्यां कृतम् ॥ The word स्थ in the sutra indicates that the case affixes must be express and not understood, for the purposes of this substitution. Therefore, not here: इति युष्मत्पुत्रः though here yushmat is preceded by a word in a sentence, and is in the Genitive case yet वः substitution 8.1.21 does not take place, because the case-affix is elided.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.