To relinquish or deny having a claim; to disavow another's claim; to decline accepting, as an estate, interest, or office
To renounce all claim to; to deny ownership of or responsibility for; to disown; to disavow; to reject
I was to say that Maw and Meggins disclaim all responsibility, continued the other. They admit no liability at all, but in consideration of your son's services they wish to present you with a certain sum as compensation..
To refuse to accept a gift or inheritance so it can go to the recipient who is next in line
If you disclaim knowledge of something or disclaim responsibility for something, you say that you did not know about it or are not responsible for it. She disclaims any knowledge of her husband's business. = deny. to state, especially officially, that you are not responsible for something, that you do not know about it, or that you are not involved with it = deny disclaim responsibility/knowledge etc