词根：-pon-, -posit-, -pos-

【词根含义】：放置

【词根来源】：来源于拉丁语动词pono, ponere, posui, positus(放置)。

【同源单词】：component, compound, exponent, expound, opponent

前缀：com-

【词根含义】：共同,一起;加强意义

【词根来源】：用于b, m, p前。

【同源单词】：accommodate, accommodation, accompany, accomplish, combat

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：pon-, posit-, pos-, -poning, -poned, -ponency, -ponent, -ponement, -pound

【来源及含义】Latin: to place, to put, to set; placement, positioning

【相关词根词缀】 Related word families intertwined with "to place, placing, to put; to add; to stay; to attach" word units: fix-; prosth-; stato-; the-, thes-.

【同源单词】aeolian deposit, appose, apposite, appositely, appositeness, apposition

词根词缀：-tion

【来源及含义】Latin: a suffix forming nouns from verbs of condition and action; an act or process: resumption, absorption; state or condition, redemption, exhaustion; something resulting from or otherwise related to an act or process, assumption, friction

【相关描述】This unit is presenting a small fraction of the hundreds of words ending with the suffix of -tion; however, there is a significant number of words which may help everyone have a better understanding and appreciation of the use of this element.

【同源单词】abduction, abjection, ablution, ablution, abolition, abruption