8.2.18
कृपो रो लः
Operational rule vidhi
For the र् of the root कृप् there is substituted ल्.
Word by word (padaccheda)
Target कृपः ṣaṣṭhī · ekavacanaTarget रः ṣaṣṭhī · ekavacanaSubstitute / term लः prathamā · ekavacana
- Target Ṣaṣṭhī (6th case): names what gets replaced, "in place of X" (1.1.49 षष्ठी स्थानेयोगा).
- 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
कृपः रः लः
Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.
कृपः रः → लः
Replace kṛpaḥ raḥ with laḥ. Inherited words (anuvṛtti) may add further conditions.
Commentary
For the र् of the root कृप् there is substituted ल्।
The र् here merely indicates the sound, and includes both the single consonant र् and the same consonant of the vowel ऋ ॥ So also with ल् ॥ So that for the single र् there is substituted ल्; and for र् when a portion of ऋ, the ल् is substituted, i.e. ऋ becomes लृ ॥ Thus कृप् = क्लृप्, as in the sutra लुटि च क्लृपः 1.3.93. कल्प्ता, कल्प्तारौ, कल्प्तारः ॥ क्लृप्तः, क्लृप्तवान् ॥
The word कृपा is derived from the root क्रप् by vocalisation, as it has been enumerated in Bhidadi class (क्रपेः संप्रसारणं च 3.3.104). The vocalised root-form कृप is not to be taken here, as it is a lakshanika form.
Vart:- The words कृपण, कृपाण, कृपीट, कर्पूर &c, are also from क्रप् ॥ Or by the Unadi diversity, the ल् change does not take place.
Vart:- Optionally so of बाल &c. As, बाल: or बारः, मूलम् or मूरम्, लघु or रघु, असुरः or असुलः, अलम् or अरम्, अङ्गुलिः or अङ्गुरिः ॥
Vart:- Optionally so in the Vedas, or when names, of कपिलका &c, as कपिरकः or कपिलकः, तिल्पिलीकम् or तिर्प्पिरीकम्, लोमाणि or रोमाणि, पांशुरं or पांशुलं, कर्म or कल्म, शुक्रः or शुक्लः, कल्मषं, कर्मषं ॥
Some say 'र and ल are one': and operations regarding र may be performed with regard to ल ॥
Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.