disclaim

This term carries a strong legalistic and formal tone, often appearing in contracts, warranties, and official statements. It describes a deliberate act of distancing oneself from a responsibility or a claim to ownership, creating a protective barrier between the speaker and a potential liability.

In social or political contexts, the word suggests a sharp, public rejection of association. While "deny" simply states that something is untrue, "disclaim" emphasizes the formal renunciation of a connection or the refusal to accept the consequences of an action.