tamper
verb
[ ˈtampə ]
• interfere with (something) in order to cause damage or make unauthorized alterations.
• "someone tampered with the brakes of my car"
Similar:
interfere,
monkey around,
meddle,
tinker,
fiddle (about),
fiddle (around),
fool about,
fool around,
play about,
play around,
toy,
trifle,
dabble,
do mischief to,
doctor,
alter,
change,
adjust,
damage,
do damage to,
harm,
deface,
vandalize,
ruin,
mess about,
mess around,
muck about,
muck around,
tamper
noun
• a machine or tool for tamping down earth or ballast.
Origin:
mid 16th century (in the sense ‘busy oneself to a particular end, machinate’): alteration of the verb temper.