tampe

v. i. [ imp. & p. p. Tampered p. pr. & vb. n. Tampering. ] [ A corruption of temper. ] 1. To meddle; to be busy; to try little experiments; as, to tamper with a disease. [ 1913 Webster ]

'T is dangerous tampering with a muse. Roscommon. [ 1913 Webster ]

2. To meddle so as to alter, injure, or vitiate a thing. [ 1913 Webster ]

3. To deal unfairly; to practice secretly; to use bribery. [ 1913 Webster ]

Others tampered
For Fleetwood, Desborough, and Lambert. Hudibras. [ 1913 Webster ]

n. 1. One who tamps; specifically, one who prepares for blasting, by filling the hole in which the charge is placed. [ 1913 Webster ]

2. An instrument used in tamping; a tamping iron. [ 1913 Webster ]