6.2.11
सदृशप्रतिरूपयोः सादृश्ये
Operational rule vidhi
The first member of a तत्-पुरुष समास preserves its original accent when the second member is the word सदृश or प्रतिरूप expressing resemblance with someone or something.
Word by word (padaccheda)
Right context सदृश- प्रतिरूपयोः saptamī · dvivacanaRight context सादृश्ये saptamī · ekavacana
- Right context Saptamī (7th case): "when X follows", the operation applies to what precedes (1.1.66 तस्मिन्निति निर्दिष्टे पूर्वस्य). Also a condition or domain ("in the sense of").
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Full reading
सदृश-
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The first member of a तत्-पुरुष समास preserves its original accent when the second member is the word सदृश or प्रतिरूप expressing resemblance with someone or something.
Thus पितृ꣡सदृशः, मातृ꣡सदृशः ॥ The words पितृ and मातृ are formed by Unadi affix तृच् (Unadi II.95) and are finally accented. By 2.1.31, सदृश forms Instrumental Tatpurusha. That case, however, is governed by 6.2.2, which provides for Instrumental compounds. The examples here given are of Genitive Tatpurusha: and it applies to cases where the case-ending is not elided. As दास्याः꣡ सदृशो, वृषल्या꣡ सदृशः ॥ Here दासी and वृषली are finally acute, and the case-affix gets the accent when semivowel is substituted 6.1.174. So also पितृ꣡प्रतिरूपः, मातृ꣡प्रतिरूपः ॥ Why do we say 'when meaning resemblance'? Observe परमसदृशः꣡, उत्तमसदृशः꣡ 6.1.223: here the sense of the compound is that of 'honor' and not 'resemblance'.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.