8.4.66
उदात्तादनुदात्तस्य स्वरितः
Operational rule vidhi
The स्वरित is the substitute of an अनुदात्त vowel which follows an उदात्त vowel.
Word by word (padaccheda)
Left context pañcamī · ekavacanaTarget ṣaṣṭhī · ekavacanaSubstitute / term prathamā · ekavacana
- Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
- 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
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
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Replace anudāttasya with svaritaḥ when it comes after udāttāt. Inherited words (anuvṛtti) may add further conditions.
Commentary
The स्वरित is the substitute of an अनुदात्त vowel which follows an उदात्त vowel.
Thus अग्निम् + ईले = अग्नि॑मीले ॥ Here ई which was अनुदात्त by rule 8.1.28, becomes svarita by the present rule, as it comes after the udatta इ of agni.
So also गा꣡र्ग्यः॑, वा꣡त्स्यः॑ ॥ Here यञ् is added by 4.1.105, and being ञित् the words are first acute. The final is anudatta, which becomes svarita. So also प꣡च॑ति and प꣡ठ॑ति, the शप् and तिप् are anudatta, the root is accented, the अ of शप् becomes svarita.
The rule 6.1.158, does not change this svarita into an Anudatta, because for the purposes of that rule, the present rule is असिद्ध, or as if it had not taken place 8.2.1. Therefore both the udatta and the svarita accent are heard.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.