catarrhyoudaoicibaDictYouDict[catarrh 词源字典]
catarrh: [16] Etymologically, catarrh is ‘something that flows down’. It comes via French catarrhe and late Latin catarrhus from Greek katárrhous, a derivative of the verb katarrhein, a compound formed from the prefix katá- ‘down’ (as in cataract) and the verb rhein ‘flow’ (a relative of English rheumatism and stream).
=> diarrhoea, rheumatism, stream[catarrh etymology, catarrh origin, 英语词源]
catarrh (n.)youdaoicibaDictYouDict
late 14c., from Medieval Latin catarrus, from Late Latin catarrhus, from Greek katarrhous "a catarrh, a head cold," literally "a flowing down," earlier kata rrhoos, ultimately from kata- "down" (see cata-) + rhein "to flow" (see rheum). Related: Catarrhalcatarrhous.