Clo.

Bella: So, I was worried that Sister got her clo wet in the pool.

Dad: She got her what wet?

Bella: Her clo! I was worried that she got her clo wet!

Dad: You mean her clothes?

Bella: No, Dad, it was just her one clo! It was her clo!

A bit of background: Eva managed to get into the pool today with her onesie on. Apparently this was distressing to Bella.