The characteristic part of the interrogative pronominal root is क् k; it has the three forms क ka, कि ki, कु ku; but the whole declensional inflection is from क ka, excepting the nom.-acc. sing. neut., which is from कि ki, and has the anomalous form किम् kím (not elsewhere known in the language from a neuter i-stem). The nom. and accus. sing., then, are as follows:

and the rest of the declension is precisely like that of त ta (above, 495).

a. The Veda has its usual variations, kā́ and kébhis for kā́ni and kāís. It also has, along with kím, the pronominally regular neuter kád; and kám (or kam) is a frequent particle. The masc. form kis, corresponding to kim, occurs as a stereotyped case in the combinations nákis and mā́kis.