6.2.194
उपाद् द्व्यजजिनमगौरादयः
Operational rule vidhi
In a तत्-पुरुष समास the words of two syllables and अजिन् have acute accent (उदात्त) on the final when preceded by उप but not when they are गौर etc.
Word by word (padaccheda)
Left context उपात् pañcamī · ekavacanaSubstitute / term द्व्यजजिनम् prathamā · ekavacanaSubstitute / term अगौरादयः prathamā · bahuvacana
- 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.
Dotted words are technical terms. Hover or tap one to see its card.
Full reading
उपात् द्व्यजजिनम् अगौरादयः
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
In a तत्-पुरुष समास the words of two syllables and अजिन् have acute accent (उदात्त) on the final when preceded by उप but not when they are गौर etc.
Thus उपगतो देवः = उपदेवः꣡, उपेन्द्रः꣡, उपसोमः꣡, उपहोडः꣡, उपाजिन꣡म् ॥ But not so in उपगौरः, उपनैषः &c.
1 गौर, 2 तैष (नैष) 3 तैल, 4 लेट, 5 लोट, 6 जिह्वा, 7 कृष्ण (कृष्णा) 8 कन्या, 9 गुध (गुड) 10 कल्प, 11 पाठ
Why "in a Tatpurusha"? Observe उपगतः सोमोऽस्य = उपसोमः ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.