7.2.46
निरः कुषः
Operational rule vidhi
A वलादि आर्धधातुक affix optionally takes इट् after कुष् when it is preceded by निर्.
Word by word (padaccheda)
Left context निरः pañcamī · ekavacanaLeft context कुषः 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.
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Full reading
निरः कुषः
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
A वलादि आर्धधातुक affix optionally takes इट् after कुष् when it is preceded by निर्।
As निष्कोष्टा or निष्कोषिता, निष्कोष्टुम् or निष्कोषितुम्, निष्कोष्टव्यम् or निष्कोषितव्यम् ॥ But only कोषिता, कोषितुं, कोषितव्यम् without निर् ॥ The exhibition of निर् instead of निस् indicates the existence of a separate and distinct preposition निर्, besides निस् ॥ It is the र् of this निर् which is changed to ल् by 8.2.19, in निलयनम्; for the र् of निस् being asiddha could not be changed to ल् ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.