6.4.131
वसोः सम्प्रसारणम्
Operational rule vidhi
A भसंज्ञक अङ्ग ending in a वसुँ प्रत्यय undergoes सम्प्रसारणम्.
Word by word (padaccheda)
Target वसोः ṣaṣṭhī · ekavacanaSubstitute / term prathamā · ekavacana
- 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.
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Full reading
वसोः
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
वसोः →
Replace vasoḥ with samprasāraṇam. Inherited words (anuvṛtti) may add further conditions.
Commentary
The semi-vowel of the affix वस् (वंस्) is vocalised to उ in a भ अङ्ग (stem).
Thus विदुषः पश्य, विदुषा, विदुषे, पेचुषः पश्य, पेचुषा, पेचुषे, ययुषः पश्य ॥ For the purposes of the elision of आ 6.4.64, vocalisation under the present sutra should not be considered as asiddha 6.4.22. Thus पा + क्वसु 3.2.107 = पपा + वस् = पपा + उस् + शस् 6.4.131, 6.1.108. Now if उ were to be considered as asiddha, then the affix does not begin with a vowel, and we can not apply 6.4.64, which requires the elision of आ, but the samprasarana is not considered assiddha, and we have पप् + उस् + अस् = पपुषः पश्य ॥ In the nominative, where the stem is not भ, we have पपा + वस् + स् = पपी + वस् + स 6.4.66 = पपीवान् 7.1.70, 6.4.10, 6.1.68 and 8.2.23. The affix क्वसु is included in वसु for the purposes of samprasarana.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.