estops

But, fortunately, there is an ethnological law of their nature which estops the evil influence of such characters by limiting their influence strictly to personal acquaintances.

Cotton is King, and Pro-Slavery Arguments Comprising the Writings of Hammond, Harper, Christy, Stringfellow, Hodge, Bledsoe, and Cartrwright on This Important Subject E. N. [Editor] Elliott

His code is a little new to us; and I feel justified in proceeding upon the theory that every man should help him, and that it is within his (Wilson's) proper function to throw Mr. Everyman down whenever public good requires it, and that his silence never estops him from interfering at any time.

Letters of Franklin K. Lane Franklin Knight Lane 1892