Sentence:  Jury , judge and executioner were riding the range in the form of a single unknown figure that could materialize anywhere , at any time , to dispense an ancient brand of justice the men of the <WSD>new</WSD> West had believed long outdated . 
Meaning of the word marked with <WSD> tags:  not of long duration; having just (or relatively recently) come into being or been made or acquired or discovered