tinnitus (n.)youdaoicibaDictYouDict[tinnitus 词源字典]
1843, from Latin tinnitus "a ringing, jingling," from tinnire "to ring, tinkle" (see tintinnabulation).[tinnitus etymology, tinnitus origin, 英语词源]
concinnityyoudaoicibaDictYouDict
"The skilful and harmonious arrangement or fitting together of the different parts of something", Mid 16th century: from Latin concinnitas, from concinnus 'skilfully put together'.