词根：-spond-, -spons-

【词根含义】：允诺,约定

【词根来源】：来源于拉丁语动词spondeo, spondere, spopondi, sponsus(允诺,约定)。

【同源单词】：correspond, correspondence, correspondent, corresponding, respond

前缀：cor-

【词根含义】：共同;加强意义

【词根来源】：用于r前,com-的变体。

【同源单词】：correct, correction, correctly, correlate, correlation

前缀：re-

【词根含义】：再,重复;回,向后;相反,反对;离开

【同源单词】：arrest, correlate, correlation, correspond, correspondence

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：spond-, spon-, spons-, -spondence, -spondent,-spondency, -spondencies

【来源及含义】Latin: to bind oneself; to pledge; to promise solemnly; to adopt and support a cause

【同源单词】correspond, correspondence, correspondent, correspondent, correspondently, correspondingly