1.2.40 उदात्तस्वरितपरस्य सन्नतरः

Word by word (padaccheda)

Target - - परस्य ṣaṣṭhī · ekavacanaSubstitute / term सन्नतरः 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.

Dotted words are technical terms. Hover or tap one to see its card.

Full reading

- -परस्य सन्नतरः

Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.

Commentary

The accent called सन्नतर is substituted in the room of an अनुदात्त vowel, which has an उदात्त or स्वरित vowel following it.
In the previous sutra it was said that an anudatta preceded by a svarita becomes Ekasruti. If, however, such an anudatta is followed by an udatta or a svarita, it does not become Ekasruti but becomes sannatara, i.e. lower than anudatta.

The sannatara is therefore that accent which was originally anudatta, and which is preceded by a svarita and is followed by an udatta or a svarita.

This is one explanation of the sutra. There is another explanation which does not take the anuvritti of Ekasruti in this sutra. The anudatta is replaced by sannatara when such anudatta immediately precedes an udatta or a svarita. The sannatara is also called anudatta. As देवा मरुतः पृश्निमातरोपः ॥

Here the word मातरः is anudatta. The word अपः has udatta on the last syllable by 6.1.171 \[1\]. In the phrase मातरोपः (मातरः + अपः) the syllable रो is anudatta, because anudatta + anudatta = anudatta. This anudatta ओ, preceding the udatta पः, is changed into sannatara.

## Footnotes
- [1] — उडिदम्पदाद्यप्पुम्रैद्युभ्यः ॥

Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.