in·flu·ence n
1 a: the act or power of producing an effect without any apparent exertion of force or direct exercise of command
b: corrupt interference with authority for personal gain
2: the power or capacity of causing an effect in indirect or intangible ways
3: one that exerts influence
in·flu·enc·er n
under the influence: affected by alcohol or another intoxicant
was arrested for driving under the influence
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.