The term POWER OF REFUSAL is related to the term VETO, which is a 4-letter word. VETO is a Latin word meaning 'I forbid'. It is a power or right that is held by certain people or organizations to reject or prohibit a decision or proposal made by another group. In politics, it is the power of a head of state to reject a bill passed by a legislature. In other contexts, it can refer to the power of an individual or group to refuse to accept or comply with something.