tamper


tam·per

intransitive verb \ˈtam-pər\
tam·peredtam·per·ing \-p(ə-)riŋ\

Definition of TAMPER

1
:  to carry on underhand or improper negotiations (as by bribery)
2
a :  to interfere so as to weaken or change for the worse —used with with <did not want to tamper with tradition>
b :  to try foolish or dangerous experiments —used with with
c :  to render something harmful or dangerous by altering its structure or composition <was charged with tampering with consumer products>
tam·per·er \-pər-ər\ noun
tam·per·proof \ˈtam-pər-ˌprüf\ adjective

Origin of TAMPER

probably from Middle French temprer to temper, mix, meddle — more at temper
First Known Use: 1567

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