词根词缀：-ative

【来源及含义】Latin: a suffix; tending to

【同源单词】acceleratory, accumulative, agglomerative, agglutinative, agitative, alterative

词根词缀：-ive

【来源及含义】Latin: a suffix; tending to; of the quality of, inclined to

【同源单词】adhesive, adhesive, advertive, affirmative, aggressive, agitative

词根词缀：sed-, sedat-, -sid, -sess

【来源及含义】Latin: sit, sitting

【同源单词】assess, assessable, assessment, assessor, assessorial, assiduity