3.4.6
छन्दसि लुङ्लङ्लिटः
Operational rule vidhi
In the छन्दस् (Vedas), the लुङ् (Aorist), लङ् (Imperfect Tense) and लिट् (Perfect Tense) are optionally used in all tenses, in relation to verbs.
Word by word (padaccheda)
Right context छन्दसि saptamī · ekavacanaSubstitute / term - - अः prathamā · bahuvacana
- Right context Saptamī (7th case): "when X follows", the operation applies to what precedes (1.1.66 तस्मिन्निति निर्दिष्टे पूर्वस्य). Also a condition or domain ("in the sense of").
- 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
छन्दसि लुङ्-
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
In the छन्दस् (Vedas), the लुङ् (Aorist), लङ् (Imperfect Tense) and लिट् (Perfect Tense) are optionally used in all tenses, in relation to verbs.
The words धातुसम्बन्ध and अन्यतरस्याम् are understood here also. By saying 'optionally', other tense-affixes may be similarly employed.
Thus देवो देवेभिरागमत् (Rig. I.I.5.) 'O God Agni! come hither with the gods'. Here the Aorist आगमत् has the force of the Imperative. ये भूतस्य प्रचेतस इदं तेभ्योऽकरं नमः 'I make salutation &c. &c'. (Rig. X. 85.17). Here अकरं is Aorist (लुङ्) and has the sense of the Present.
So also अग्निमद्य होतारमवृणीतायं यजमानः। Here लङ् is used instead of लट् ।
So also अद्या ममार = अद्य म्रियते । Here लिट् is used instead of लट् ।
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.