echolalia（n.） "meaningless repetition of words and phrases," 1876, 源自德语 (von Romberg, 1865)，源自希腊语 ēkhō (参见 echo (n.)) 和 lalia "talk, prattle, a speaking," 源自 lalein "to speak, prattle," 具有模拟语源。该词起源时间：1876年
