Frank Sidgwick, The Sources and Analogues of 'A Midsummer-Night's Dream'… (1908)
“ The ass, or young man—I cannot tell by which name I should term him—being many times repelled, and understanding their words that called him ass, considering that he could speak never a word and yet could understand everybody, he thought that he was bewitched by the woman at whose house he was. And therefore, when by no means he could get into the boat, but was driven to tarry and see her departure, being also beaten from place to place as an ass, he remembered the witch's words, and the words of his own fellows that called him ass, and returned to the witch's house ”
