What does the word Chattie mean

My father talked about the "chatty"effect where military water bottles were covered in felt to cool the contents has anybody else heard of this word. I know the effect is true I am questioning the word "Chattie or chatty " where did it come from
Asked Jul 21, 2013
A water chatty is a pot that was used to hold and transport water in India.

Photo of a chatty:
Answered Jul 22, 2013

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