Words are archaic, seldom, if ever, used. There is a conflict between proper nouns and 'normal' nouns. Example: Celt is permitted, while Dane is not. Indies was another strange example I'm not at all convinced this reflects the English language. Remember, this is also American spelling where many of the vowels have been curiously eliminated. Examples of weird words: leat, strang (no, this is not a spelling mistake), ness...