In the writings of Bāṇabhaṭṭa, Bhavabhūti, and Sūdraka, these words have been very freely and largely used. Verbs also were made of them, and expressions like Khaṭ-khaṭāyate, Phurphurāyati, and Maḍmaḍāisma are found frequently. The use of these words as verbs commenced only in the seventh century, so far I have been able to ascertain. From the seventh century onward, there is scarcely any Sanskrit composition, wherein these Deśī words of onomatopoetic origin are not found.
I should like what I have asserted to be tested by reference to the books, the dates of which have been fairly established. If the use of this particular class of Deśī words grew in the manner indicated in this paper, the words will have a special value in determining the chronology of some old books.
