संख्यासुपूर्वस्य

Operational rule vidhi

The final अ of पाद is elided also when a numeral or the word सु precedes it in a बहुव्रीहि समास .

Word by word (padaccheda)

Target सङ्ख्यासुपूर्वस्य ṣaṣṭhī · ekavacana

Target Ṣaṣṭhī (6th case): names what gets replaced, "in place of X" (1.1.49 षष्ठी स्थानेयोगा).

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

Full reading

सङ्ख्यासुपूर्वस्य

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

Commentary

The final अ of पाद is elided also when a numeral or the word सु precedes it in a बहुव्रीहि समास ।
Thus द्वौ पादावस्य = द्विपात्, त्रिपात्, so also शोभनौ पादावस्य = सुपात् ॥

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