Is it ensure, insure, or assure?
1851, from chintz + -y (2).
Parsimonious; stingy; cheap, chinchy • The spelling imitates that of chintzy 2; a dialect spelling chinsy is attested from 1940: Ask them to validate both tickets, she'd think I was chintzy
[1950s+; probably fr chinchy]
[1850s+; fr Hindi fr chintz, a printed cotton fabric regarded as cheap, gaudy, and unstylish]