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cad;cas;cid


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cad;cas;cid
[L]=to fall; to befall降,降临。cad,cas,cid是同源异形词根,都源于拉丁动词cadere,意思相当于to fall(降落)或to befall(降临)。其中,cad 是不定式词干,cas是动名词词干,而cid是cadere的异体cidere的不定式词干。这族同根词的数量较大。
decadent
[de-=down下;cad=to fall降;-ent a.=-ing表性质→“falling down下降的”]。 a. falling down morally;falling into ruin堕落的;颓败的:The Ching Empire had become decadent by that time.当时清帝国已经腐败了。
decadence
[de-;cad;-ence n.]。 n.衰落;颓废
case
[cas=to befall降临;-e→“that which befalls降临之事”→]。 n. event;condition事件;情况:a typical case典型事件
casual
[cas=to befall降临;-u-;-al a.=having the quality有......性质的→“having the quality of befalling
casualty
[casual;-ty n.]。 n.事故的伤亡者
occasion
[oc-(ob-)=in the way of在......面前;cas=to befall降临;-ion n.=the state or result表状态或结果→“that which befalls in one's way降临在面前的事”→]。 n.1 instance or case情况2 favorable time
occasional
[occasion;-al a.]。 a.偶尔的
accident
[ac-(ad-)=towards朝向;cid=to befall降临;-ent n.=thing事→“thing that befalls towards a person朝着某人降临的事”→]。 n. 1unexpected event意外的事;偶然的事:I met her quite by accident.我碰到她是很偶然的事。2 unfortunate happening事故:traffic acci-dents交通事故
accidental
[accident;-al a.]。 a.意外的;偶然的
incident
[in-=on
incidental
[incident;-al a.]。 a.偶然的;伴随的
incidence
[in-;cid;-ence n.]。 n.发生;发生率
coincide
[co-(com-)=together共同;in-=upon在......之上;cid=to befall降临→“to befall upon together共同降临在......之上”]。 v. 1happen at the same time or same place(时间、空间)恰好相合:My birthday coincides with yours. 我恰好和你同一天生日。2 agree;correspond一致;符合:to coincide in opinion意见相符
coincident
[coincid(e);-ent a.]。 a.同时发生的;一致的
deciduous
[de-=off脱离;cid=to fall降;-u-;-ous a.=having the quality有......性质的→]。 a. having the quality of falling off at a certain time定期脱落的:deciduous trees落叶林
occident
[oc-(ob-)=down下;cid=to fall降落;-ent n.=thing connected with 表相关事物→“the direction towards which the heavenly bodies were supposed to fall down前人认为的天体降落的方向”→]。 n.1 the west西方2 the western hemisphere西半球:the Occident亚洲以西的全部国家;欧洲;欧美
occidental
[occident;-al a.]。 a.西方的
decay
[de-=down下;cay(cad的变形)=to fall降→]。 v. fall down from a state of health and excellence;rot衰退;腐朽:The old man's teeth are all decayed.这老人的牙齿全坏了。