词根：-astr-, -aster-, -stell-

【词根含义】：星

【词根来源】：-astr-和-aster-来源于希腊语astron/aster(星),-stell-来源于拉丁语名词stella, stellae, f(星)。均可追溯至原始印欧语ster-。

【同源单词】：astral, astrodome, astroid, astrology, astronaut

前缀：con-

【词根含义】：共同,一起;加强意义

【词根来源】：用于c, d, f, g, j, n, q, s, t, v前,com-的变体。

【同源单词】：concave, conceal, concede, conceit, conceited

词根词缀：-ation, -ization, -isation

【来源及含义】Greek > Latin: a suffix; action, act, process, state, or condition; or result of doing something

【相关描述】Although there are over 1,450 word entries ending with -ation or -ization listed in this unit, there are certainly many more which exist in the English language. At any rate, this unit provides a significant number of -ation and -ization examples for you to see.

【同源单词】abarticulation, abbreviation, abdication, abdominal examination, aberration, abevacuation

词根词缀：com-, co-, cog-, col-, con-, cor-

【来源及含义】Latin: together, together with, with

【相关描述】The prefix com- is assimilated to co- before h, w, and all vowels:

The prefix com- becomes, cog- before g: cognition, [co + gnoscere, "to know"], et al.

The prefix com- becomes, col- before l: colloquial, et al.

The prefix com- becomes, con- before c, d, g, j, n, q, s, t, v: covivant, et al.

The prefix com- becomes, cor- before r: corrigible, et al.

【相关词根词缀】 Related "together" units: greg-; inter-; struct-.

【同源单词】abscond, abscondee, anticorrosive, bioconcentration, coadjutant, coadjuting

词根词缀：stell-

【来源及含义】Latin: star, stars

【同源单词】circumstellar, constellation, Estella, Estelle, interstellar, Stella