词根:-val-
【词根含义】:强壮;价值
【词根来源】:来源于拉丁语动词valeo, valere, valui, valitus(强壮,价值)。
【同源单词】:avail, available, countervail, devaluate, devaluation
前缀:counter-
【词根含义】:相反,相对
【词根来源】:中古英语为countre-,来源于中古法语前缀contre-或副词contre。
【同源单词】:counteract, counteragent, counterfeit, counterpart, countervail
词根词缀:contra-, contro-, counter, contre-
【来源及含义】Latin: against, opposed to, opposite, conflicting, different, clashing, unaccommodating
【同源单词】accounter, acrocontracture, contentious, contraband, contrabandist, contrabass
词根词缀:valid-, val-, vale-, -vail, -valent, -valence
【来源及含义】Latin: valere, to be strong, to be well, to be worth; strong; power, strength; and "fare well" [go with strength]
【同源单词】Ab abusu ad usum non valet consequentia, Ab actu ad posse valet illatio, ad valorem, Aeternum vale, ambivalence, ambivalent