3.1.41
विदाङ्कुर्वन्त्वित्यन्यतरस्याम्
Operational rule vidhi
The form विदाङ्कुर्वन्तु is optionally employed as an irregular form.
Word by word (padaccheda)
Verb विदाङ्- कुर्वन्तु tiṅantaIndeclinable avyayaRight context अन्यतरस्याम् saptamī · ekavacana
- Verb A finite verb form (tiṅanta).
- Indeclinable An avyaya such as च "and", वा "optionally", न "not".
- 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").
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Full reading
विदाङ्-
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
Commentary
The form विदाङ्कुर्वन्तु is optionally employed as an irregular form.
This irregular form is obtained by adding the affix आम् to the root विद् 'to know,' when followed by लोट् or the Imperative tense; the tense-affixes of लोट् are then elided by luk; moreover there is no substitution of guna as required by 7.3.86; and when we have thus obtained the form विदाम्, we annex to it the लोट् of the verb कृ; thus we have विदाङ्कुर्वन्तु or विदन्तु 'let them know'. The third person plural is not only intended to be spoken of by the employment of the form विदाङ्कुर्वन्तु in the aphorism; on the contrary, the word इति shows that all the numbers and persons of the Imperative may be so employed; as विदाङ्करोतु विदाङ्कुरुताम् &c.
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.