Sentence:  I therefore pass by the long tale of oppression in the islands under Scottish rule, the subversion of the native laws, the imposition of the feudal system upon the <WSD>odalism</WSD> of the north, the appropriation of the greater part of the land by adventurers from Scotland; in short, the ruin of the native race. 
Meaning of the word marked with <WSD> tags:  A system of heritable freehold property rights to odal land.