7.2.43
ऋतश्च संयोगादेः
Operational rule vidhi
The इट् is optionally added to endings of the आत्मनेपद Benedictive and s-Aorist, after a root which ends in short ऋ which is preceded by a conjunct consonant.
Word by word (padaccheda)
Left context ऋतः pañcamī · ekavacanaIndeclinable च avyayaLeft context संयोगादेः pañcamī · ekavacana
- Left context Pañcamī (5th case): "after X", the operation applies to what follows (1.1.67 तस्मादित्युत्तरस्य). Also used for limits and sources.
- Indeclinable An avyaya such as च "and", वा "optionally", न "not".
Dotted words are technical terms. Hover or tap one to see its card.
Full reading
ऋतः च संयोगादेः
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The इट् is optionally added to endings of the आत्मनेपद Benedictive and s-Aorist, after a root which ends in short ऋ which is preceded by a conjunct consonant.
As ध्वृषीष्ट or ध्वरिषीष्ट; स्मृषीष्ट, or स्मरिषीष्ट; अध्वृषाताम्, or अध्वरिषाताम्; अस्मृषाताम्, or अस्मरिषाताम् ॥ ऋत इति किम् । च्योषीष्ट, प्लोषीष्ट; अच्योष्ट, अप्लोष्ट ॥ संयोगादेरिति किम् । कृषीष्ट, हृषीष्ट; अकृत, अह्रत ॥ आत्मनेपदेष्वित्येव । अध्वार्षीत्, अस्मार्षीत् ॥ संस्कृषीष्ट समस्कृतेत्यज्ञोपदेशाधिकारादभक्तत्वाच्च सुट् इडागमो न भवति ॥
Why ending in short ऋ? Observe च्योषीष्ट, अच्योष्ट, प्लोषीष्ट and अप्लोष्ट ॥ Why 'beginning with a conjunct consonant'? Observe कृषीष्ट, हृषीष्ट, अकृत and अहृत ॥ Why 'in the Atmanepada'? Observe अध्वार्षीत्, अस्मार्षीत् ॥ In संस्कृषीष्ट and समस्कृत there is not इट्, first because स्कृ (the form assumed by कृ with सुट् augment) is not so enunciated in the Dhatupatha; the word upadesa 7.2.10, is understood here; so that the rule applies to those roots only which in the Dhatupatha are ऋ ending and preceded by conjunct consonant; and secondly सुट् augment is considered as not attached to the root 6.1.135, and therefore स्कृ is not considered a root beginning with a conjunct consonant.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.