4.2.97
नद्यादिभ्यो ढक्
Operational rule vidhi
The affix ढक् comes after the words नदी etc. in the remaining senses i.e. तत्र जातः (4.3.25) etc.
Word by word (padaccheda)
Left context - आदिभ्यः pañcamī · bahuvacanaSubstitute / 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.
- 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
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Commentary
The affix ढक् comes after the words नदी etc. in the remaining senses i.e. तत्र जातः 4.3.25 etc.
Thus नादेयं, 'pertaining to a river', माहेयम् 'earthen', &c.
1 नदी, 2 मही, 3 वाराणसी, 4 श्रावस्ती, 5 कीशाम्बी, 6 वनकौशाम्बी (वनको) 7 काशपरी 8 काशफरी (फारी) 9 खादिरी, 10 पूर्वनगरी, 11 पाठा (पावा) 12 माया (मावा) 13 शाल्वा (साल्वा)14 दावी, 15 सेतकी (वासेनकी) 16 वडवाया वृषे. 17 दाल्वा.
The word पूर्वनगरी occurs in the above list. Its derivative will be पौर्वनगरेयम् ॥ But some say, it is composed of three words पूर्-वन-गिरि and they apply the affix to each of them separately. As पौरेयम्, वानेयम् and गैरेयम् ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.