hmmmm.....word tricks? Protecting their own? Legal definition of cover.

Cover

To protect or shelter; to make good; to insure. To cover a check means to deposit sufficient funds in a bank account to pay the amount written on a check or checks.

The right of a purchaser to buy goods other than those that were originally contracted for as a remedy in the event of a breach of contract by the seller.

https://legal-dictionary.thefreedictionary.com/cover