cledonism (n.)youdaoicibaDictYouDict[cledonism 词源字典]
"avoidance of words deemed unlucky," 1885, from Latinized form of Greek kledon "omen or presage contained in a word or sound," also "report, rumor, tidings; fame" (see claim (v.)) + -ism.[cledonism etymology, cledonism origin, 英语词源]