A Kanarese word called by Eu- ropeans " cash. " This denomination is ap- plied to the small copper issues of Travan- core, sixteen of them being equal to a Chuckram. On the modern coinage the word is written in English " cash. "
In the Mysore coinage under Krishna Raja Udaiyar (1799-1868) the word Kasu followed by a numeral is frequently met with; similarly, in the coinage of Madras, the Fels is divided into twenty Kas, the latter word being another form of Kasu. See Pagoda, and conf. Elliot, Coins of Southern India. 1886. (p. 59).
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)