What is the meaning of Mothball?

A small ball of chemical pesticide (originally camphor and now typically naphthalene or paradichlorobenzene) and deodorant placed in or around clothing and other articles to deter moth larvae which may damage them.

To store (clothing, etc.) with mothballs (noun noun, sense 1).

1. To stop using (something), and often to put it in storage; specifically, while keeping it in good condition so it can be used in the future.

   To stop using (something), and often to put it in storage; specifically, while keeping it in good condition so it can be used in the future.

   To stop work on (a plan, project, etc.) for the time being; to postpone, to shelve.

   Source: wiktionary.org