shishter

And your sister (he pronounced it shishter) let the cypher out (he pronounced it shypher).

Jimgrim Mundy, Talbot, 1879-1940 1931

King Pālaka, my shishter's husband, and I 'll tell my shishter and my mother too, and I' ll have thish judge removed, and another judge appointed.

The Little Clay Cart Mrcchakatika Arthur William Ryder 1907