After a verb ending in a consonant but preceded by i , u or ṛ -long or short, and after the verbs jñā 'to know', śrī 'to please' and kṝ 'to scatter', comes the affix ka (a)\n,
Thus विक्षिप् + क = विक्षिप nom. sing. विक्षिपः. So also विलिखः 'inscription'; बुधः 'who knows', कृशः 'lean'; ज्ञा + क = ज्ञः 'who knows' 6.4.64; प्री + क = प्रियः 'what pleases'; कॄ + क = कि + अ ( VII. I. 100) = किर् + अ (I. I. 51) = किरः 'who scatters' i. e. 'a hog'.
The words देव 'God', सेव 'service' and मेष 'ram', should be read in the पचादि class of the last sutra, being formed by the affix अच् and not by क.,