词根：funct = to perform
来自拉丁语的funct 意为to perform。
同源词：
1. perfunctory（假装做事的per(=falsely) + funct(=perform)）
adj.敷衍的，马马虎虎的
perfunctorily adv.敷衍地，马马虎虎地
The acquisitions editor only gave a perfunctory glance at the volume of poetry.组稿编辑只是马马虎虎地看了一眼那本诗集。
2. defunct（停止、中断做事的de(=off,from) + funct(=perform)）
adj.死的；（法律等）废止的
The movie theater in my small town has been defunct of for a decade.我们小城镇的剧场关门已有十年了。
3. function
n.功能，作用；职务，职能；宗教仪式，庆典活动；[数]函数
v.起作用；运转
functionalism n.功能主义
functionalist n.功能主义者
function of the heart 心脏的功能
the numerous functions that the Queen must attend 女王不得不参加的各种仪式
My new typewriter doesn't function very well.我的新打字机不太好用。
He functioned as boss.他起到了首领的作用。
4. functional
adj. 机能的；作用的；职务（上）的；（建筑等）从使用的观点设计（或构成）的
functional disorder 机能紊乱
functional representation [医]功能表达法
functional furniture 实用的家具
5. functionary
n.（尤其指政府机关、政党的）官员；公务员
词根词缀：bi-, bin-, bino-, bis-
【来源及含义】Latin: two, twice, double, twofold; a number; it normally functions as a prefix
【相关描述】This bi- is used before s, c, or a vowel. Don't confuse this bi- with another one which means "life".
All words except biennial referring to periods of time and prefixed by bi- are potentially ambiguous. Since bi- can be taken to mean either "twice each" or "every two", a word like "biweekly" can be understood as "twice each week" or "every two weeks".
【同源单词】biacid, biangular, biannual, biannual, biarchy, biarticulate
词根词缀：organo-, organ-
【来源及含义】Greek: an organized structure; pertaining to a specific bodily part with a specific function or set of functions; instrument, tool, implement
【同源单词】bioinorganic, bio-organic, chemoorganotrophic, cosmorganic, electric organ, electric organs
词根词缀：spleno-, splen-, splenico-, spleni-, -splenism, -splenia, -splenic
【来源及含义】Greek: spleen, "the inward parts;" the elongated accessory lymphatic organ of the vascular [blood] system
【相关描述】The spleen is a large glandlike, but ductless, organ situated in the upper part of the abdominal cavity on the left side and lateral to the cardiac end of the stomach.
It is also called the lien. The largest structure in the lymphoid system, it is a flattened oblong shaped structure of about 125 mm. in length.
It disintegrates the red blood cells and sets the hemoglobin free, which the liver converts into bilirubin; it gives rise to new red blood cells during fetal life and in the newborn; serves as a reservoir of blood; produces lymphocytes and plasma cells; and has other important functions, the full scope of which hasn't been entirely determined.
【同源单词】asplenia, asplenic, autosplenectomy, Habet et musca splenem, hepatosplenitis, hepatosplenomegaly
词根词缀：-y
【来源及含义】Greek: a suffix that means; state of, condition of, quality of, act of
【相关描述】There hundreds of other words that use the suffix -y; however, the following entries will provide examples which will at least give you an idea of how it functions when it is attached to words.