caco-youdaoicibaDictYouDict[caco- 词源字典]
before vowels cac-, word-forming element meaning "bad, ill, poor" (as in cacography, the opposite of calligraphy), from Latinized form of Greek kako- a hard-working prefix in ancient Greek, from kakos "bad, evil," considered by etymologists probably to be connected with PIE *kakka- "to defecate" (see caca).[caco- etymology, caco- origin, 英语词源]
cacoethes (n.)youdaoicibaDictYouDict
"itch for doing something," 1560s, from Latinized form of Greek kakoethes "ill-habit, wickedness, itch for doing (something)," from kakos "bad" (see caco-) + ethe- "disposition, character" (see ethos). Most famously, in Juvenal's insanabile scribendi cacoethes "incurable passion for writing."
cacoon (n.)youdaoicibaDictYouDict
large, flat bean from an African shrub, 1854, from some African word.
cacophony (n.)youdaoicibaDictYouDict
1650s, from Greek kakophonia, from kakophonos "harsh sounding," from kakos "bad, evil" (see caco-) + phone "voice, sound," from PIE root *bha- (2) "to speak, tell, say" (see fame (n.)). Related: Cacophonous.
cacologyyoudaoicibaDictYouDict
"Bad choice of words or poor pronunciation", Late 18th century: via late Latin from Greek kakologia 'abusive language', from kakos 'bad'.
cacodemonyoudaoicibaDictYouDict
"A malevolent spirit or person", Late 16th century: from Greek kakodaimōn, from kakos 'bad' + daimōn 'spirit'.
cacographyyoudaoicibaDictYouDict
"Bad handwriting or spelling", Late 16th century: from Greek kakos 'bad', on the pattern of orthography.