4.3.120
तस्येदम्
Operational rule vidhi
After a word in the Genitive -6th-Case in construction an affix -- प्राग्दीव्यतोऽण् (4.1.83) comes in the sense of 'this is his',
Word by word (padaccheda)
Target तस्य ṣaṣṭhī · ekavacanaSubstitute / term इदम् 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
तस्य इदम्
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
तस्य → इदम्
Replace tasya with idam. Inherited words (anuvṛtti) may add further conditions.
Commentary
After a word in the Genitive -6th-Case in construction an affix -- प्राग्दीव्यतोऽण् 4.1.83 comes in the sense of 'this is his',
The five universals अण् &c. 4.1.83 and the affixes घ &c. 4.2.93 come in this sense. Thus उपगोरिदम् = औपगवम्, 'of Upagu'. कापटवम्, राष्ट्रियम्, अवारपारीणं ॥ The affixes, however, do not come, when the word governed by the possessive case, is अनन्तर &c. Thus देवदत्तस्यानन्तरम् ॥ In short the thing possessed must be property, village, kingdom or men.
Vart :- The verb वह takes तृ (तृण and तृच्) and अण् preceded by an इट् As, सवोढुः स्वं = सांवहित्रम् ॥
Vart :- The affix रञ् comes after अग्नीधः, in the sense of 'house', and the base gets the designation of भ ॥ As अग्नीध्रम् ॥ The word अग्नीध्र being treated as a Bha and not as a Pada, the ध is not changed to द 8.2.39.
Vart :- The affix 'shenyan' comes after समिधा, in the sense of placing. Thus सामिधेन्यो मन्त्रः 'the verses (recited while) placing the fuel on fire', सामिधेनी 4.1.41 ॠक् ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.