tamper
UK: ˈtæmpə | US: ˈtæmpər
vi. to interfere with something secretly or improperly
vt. to alter or meddle with something in a harmful or unauthorized way
The word "tamper" originally referred to packing or pressing down material (like soil or explosives) firmly. Over time, it evolved to imply meddling or interfering, likely from the idea of manipulating something improperly. The shift from physical packing to unauthorized interference reflects a metaphorical extension of the original meaning.
Do not tamper with the evidence at the crime scene.
The technician was accused of tampering with the lab results.
Children should never tamper with electrical outlets.
The lock showed signs of someone trying to tamper with it.
Tampering with official documents is a serious offense.