Question

84. sid, sess [L]=

Accepted Answer

to sit 坐
在常用词president，reside，session 和possess 中，有一对同源异形根sid 和sess。sid 来自
拉丁动词sidere 的不定式词干，sess 来自动名词词干，其意思相当于to sit（坐）或to settle
（安放）。

preside [pre-=before 前；sid=to sit 坐；-e→“to sit before others 坐在其他人前面”→] v. sit in
authority;act as chairman 主持；作会议主席：to preside at a meeting 主持会议

▽presider [presid(e);-er n.] n.（会议的）主席；主持者
presidium [presid(e);-ium n.] n.主席团；常务委员会
president [presid(e) v.主持，当权；-ent n.=person 人→] n. person chosen to preside over a nation,
university or any other organization 总统；大学校长；会长；社长等

▽presidency [pre-;sid;-ency n.] n.总统等的职位或任期
presidential [president;-ial a.] a.总统（或校长等）的

reside [re-=back, down 回，下；sid=to sit or settle 坐，安放；-e→“to sit backward, to settle down
靠背安坐，安顿下来”→] v. make one's home at a place 安家，居住：to reside in the city 在城
市居住

▽resident [resid(e);-ent n.] n.居民
residence [resid(e);-ence n.] n.居住；住宅

subside [sub-=under, down 下；sid=to sit or settle 坐，停留；-e→“to settle down 停在下面，
停息”→] v.① sink down 下沉；沉降：The building subsides gradually.这座房子逐渐下沉。②
fall into a state of quiet 平息：The wind has subsided.风停了。

▽subsidence [subsid(e);-ence n.] n.下降；沉降；平息

dissident [dis-=apart 分开；sid=to sit 坐；-ent n.=person 人→“person who sits apart from others
与别人分开坐的人”→] n. person openly disagreeing with an opinion; dissenter 持异议者；反
对者：political dissidents 持不同政见者

▽dissidence [dis-;sid;-ence n.] n.异议；不一致

assiduous [as-(ad-)=to, at 面向；sid=to sit 坐；-u-;-ous a.=having the quality 有……性质的→
“ having the ability to sit at a place to work 能面壁而坐坚持工作的” → ] a. constant or
unwearied in application;diligent 刻苦的；勤奋的：He is assiduous in his study.他学习勤奋。

▽assiduity [as-;sid;-u-;-ity n.] n.刻苦；勤奋

insidious [in-=in 内；sid =to sit 坐；-i-;-ous a.=like 像……的→“like sitting in a hidden place, like
setting an ambush 像坐在暗处的，像打埋伏的”→] a.① intended to entrap 伺机为害的：
insidious diseases 暗疾② deceptive;treacherous 暗中为害的；阴险的：an insidious tempter
阴险的诱惑者

▽insidiousness [insidious;-ness n.] n.阴险；狡诈

session [sess=to sit 坐；-ion n.=the act or state 表行为或状态→] n.① act of sitting 坐；就座②
sitting, or time of sitting, as of a court or public body 开会；开庭；会期；开庭期：plenary session
全体会议

▽sessional [session;-al a.] a.开会的；开庭的

possess [pos（来自potis）=able 能……的；sess=to sit 坐→“to be able to sit in a place 能坐在
一个位置上”→] v.① inhabit, or occupy 居住于；占据②have or hold as property;own 具有；
占有：He possessed landed property.他拥有地产。③ maintain, or control 保持；控制：She was
possessed by the desire to be rich.她被发财的欲望所支配。

▽possessor [possess;-or n.] n.占有人；所有人
possession [possess;-ion n.] n.占有；占有物；财产；领地
possessive [possess;-ive a.] a.占有的n. [语法]所有格

assess [as-(ad-)=to, at 在；sess=to sit 坐→“（judges in a court）to sit at or sit by（法官等在法
庭）就座”→“to judge or estimate 作判断，估计”→] v.① fix the value or profits of 对……
进行估价：His property is assessed at one million dollars.他的财产估价为100 万元。② decide
the amount of (a tax )征收（税款）：to assess a tax of ten pounds 征税10 镑

▽assessment [assess;-ment n.] n.估价；评价
assessor [assess;-or n.] n.估价财产的人；确定税款的人
assessable [assess;-able a.] a.可估价的；可征税的

Sit N Settle Preside Place V.① Insidious V