3.2.104
जीर्यतेरतृन्
Operational rule vidhi
The affix अतृन् comes after the verb जृ 'to grow old' with the sense of past time.
Word by word (padaccheda)
Left context जीर्यतेः pañcamī · ekavacanaSubstitute / term अतृन् 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
जीर्यतेः अतृन्
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The affix अतृन् comes after the verb जृ 'to grow old' with the sense of past time.
As जृ + अतृन् = जर् + अव् 7.3.84 = जरत्, 1st. sing. जरन्, 1st. dl. जरन्तौ, 1st. pl. जरन्तः 'grown old' 6.1.7.
By the rule of वासरूप 3.1.94, the Nishtha affixes also come after this verb. As जीर्णः and जीर्णवान् । जृ + क्त = जिर् + त 7.1.100 and 1.1.51 = जिर् + न 8.2.42 = जीर्ण 8.2.77 and 8.4.1 'grown old'.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.