echolalia
/ˌekəʊˈleɪlɪə/noun
mass noun
1- Psychiatry meaningless repetition of another person's spoken words as a symptom of psychiatric disorder【精神病学】言语模仿症。
1.1
- repetition of speech by a child learning to talk幼儿学语（指小孩通过复述学会说话）。
词源
late 19th cent.: modern Latin, from Greek ēkhē 'echo' + lalia 'speech'.