Okay so far, next paragraph.

One of the arguments against deriving shanty as a song from the French 'chanter' is the change in pronunciation; another is the difficulty of explaining how a French word could have crossed the channel as alate as 1830. However, shanty as a houseis from the French 'chantier' (timberyard), via the wood-choppers' cabins in Fr-Canadian logging camps, so there need be no doubts about French 'ch-' becoming English 'sh-'. Mencken, in 'The American Langiage', derives shanty as song from French 'chanter' but calls it 'not American', and the word is not in the 'Dictionary of American English'.