Sentence:  Through 1911 and 1912 , as the Cubist facet-plane 's tendency to adhere to the literal surface became harder and harder to deny , the task of keeping the surface at arm's length fell all the <WSD>more</WSD> to eye-undeceiving contrivances . 
Meaning of the word marked with <WSD> tags:  (comparative of `much' used with mass nouns) a quantifier meaning greater in size or amount or extent or degree