the GNU version of the Collaborative International Dictionary of English
ad. In an influential manner.
The Century Dictionary and Cyclopedia
In such a manner as to exercise influence; so as to affect, sway, incline, or direct.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
ad. exerting influence
Word Usage
"Attempts to standardize English were largely arbitrary, shaped by conventions in the places where English was most influentially studied, recorded, and “tamed” by rules and guidelines."