Aid
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
v. To support, help or assist. This word must be distinguished from Its synonym "encourage," the differenco being that the former connotes active support and assistance, while the latter does not; and also from "abet," which last word imports necessary criminality in the act furthered, while "aid," standing alone, does not.
See Abet.