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词根:-tact-, -ting-, -tang-, -tag-

【词根含义】:接触

【词根来源】:来源于拉丁语动词tango, tangere, tetigi, tactus(接触)。

【同源单词】:contact, intact, tact, tactful, contaminate

前缀:il-, in-, ir-, im-

【词根含义】:不,无,非;入,向内

【词根来源】:(il-用于l前;im-用于b, m, p前;ir-用于r前;in-用于其它情况)   来源于拉丁语in。

【同源单词】:illegal, illegality, illegitimate, illiterate, illogical

词根词缀:integ-

【来源及含义】Latin: whole, complete

【同源单词】Ab integro, beta decay, biological integrity, biomass, deintegrate, disintegrate

词根词缀:-ity

【来源及含义】Latin: suffix used to form abstract nouns expressing act, state, quality, property, or condition corresponding to an adjective

【同源单词】abnormality, absorbability, acclivity, acerbity, acridity, acrity

词根词缀:tang-, tact-, tast-, ting-, -tig -tag, -teg-

【来源及含义】Latin: touch, feel; try; reach; handle; evaluate, estimate

【同源单词】anticontagious, atactilia, attain, attainable, attainder, attainment