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词根:crep = to rattle

  来自拉丁语的crep 意为to rattle 。

同源词:

1. decrepit(出声变小的de(=down) + crep(=rattle))
  adj.老弱的;衰老的,衰朽的
  decrepitude n.衰老,衰朽
  Believe it or not,the decrepit old woman across the street baked this bread!信不信由你,这个面包是街对面的那个老奶奶烤的!

2. discrepancy(分别出声 dis(=apart) + crep(=rattle))
  n.(陈述、言语的)不相符,不一致;矛盾
  discrepant adj.相差的,有差异的,矛盾的
  There is an obvious discrepancy between his kind words and cruel deeds. 他亲切的话语和他残忍的行为显然是自相矛盾的。

3. crepitate
  v.发出爆裂声
  crepitation n.爆裂声

词根:set = fix, 表示“安置好”

settle v. 固定;安居(set+tie表动词,如:prattle闲聊)

settee n. 长靠椅(人安定休息的地方)

inset v. 插入(in进入+set→安置进去→插入)

reset v. 重放,重排(re重新+set→重新放)

upset v. 打翻 a 不安心的(up向上+set→[把底]向上放→打翻)

词根词缀:crepit-

【来源及含义】Latin: creak, crackle; rattle, rustling; grating, grinding

【同源单词】crepitant, crepitant crackle, crepitate, crepitation, crepitus, decrepit

词根词缀:strepi-, strep-

【来源及含义】Latin: noise, to make noise; to rattle, to roar

【同源单词】obstreperous, obstreperously, obstreperousness, streperous, strepitant, strepitous