词根：-pel-, -puls-

【词根含义】：推动

【词根来源】：来源于拉丁语动词pello, pellere, pepuli, pulsus(推动)。

【同源单词】：appeal, appealing, compel, dispel, expel

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：puls-, pulsi-, -pulsion, -pulsive

【来源及含义】Latin: push, beat, strike, knock, drive; drive to, force toward

【相关词根词缀】 Cross references of word families that are related directly, or indirectly, to: "push, shove, thrust": osmo-; pel-; trud-.

【同源单词】appulse, appulsive, appulsively, compulsion, compulsive, compulsively