词根词缀：aevum, evum; etern-; aeternus

【来源及含义】Latin: age; space of time, ever, always; eternity

【相关词根词缀】 Related "time" units: archaeo-, archeo-; Calendars; chrono-; horo-; pre-; Quotes: Time; tempo-.

【同源单词】Ab aeterno, aeon, age, aged, aye, coetaneous

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