idioglossiayoudaoicibaDictYouDict[idioglossia 词源字典]
" Medicine a form of dyslalia characterized by consistent substitution of speech sounds to such a degree that the affected person seems to speaking a language of his or her own", Late 19th cent. From idio- + -glossia, perhaps after Hellenistic Greek ἰδιόγλωσσος of distinct tongue.[idioglossia etymology, idioglossia origin, 英语词源]