Sentence:  A small body of negroes defied the choicest troops of one of the greatest nations in the world, kept an extensive country in alarm, and were at length brought to surrender, only by means of a <WSD>subvention</WSD> still more extraordinary than their own mode of warfare. 
Meaning of the word marked with <WSD> tags:  The act of relieving, as of a burden; support; aid; assistance; help.