influence
noun
°The power to affect, control or manipulate something or someone; the ability to change the development of fluctuating things such as conduct, thoughts or decisions.
"I have absolutely no influence over him."
°An action exerted by a person or thing with such power on another to cause change.
"I'm not able to exercise influence over him."
verb
°To affect by gentle action; to exert an influence upon; to modify, bias, or sway; to persuade or induce.
"The politician wants to influence the public."
°To exert, make us of one's influence.