Intermeddle
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
To interfere with property or the conduct of business affairs officiously or without right or title.
McQueen v. Babcock, 41 Barb. (N. Y.) 339; In re Shinn's Estate, 166 Pa. 121, 30 Atl. 1026, 45 Am. St. Rep. 656.
Not a technical legal term, but sometimes used with reference to the acts of an executor de son tort or a negotiorum gestor in the civil law.