词根：-ced-, -cess-, -ceed-

【词根含义】：行走,退让

【词根来源】：来源于拉丁语动词cedo, cedere, cessi, cessus (行走,退让)。

【同源单词】：accede, antecede, antecedent, concede, intercede

前缀：retro-

【词根含义】：向后

【词根来源】：来源于拉丁语retro(re-回,再 + -tro方向)

【同源单词】：retrocede, retrograde, retrogress, retrospect, retrospective

词根词缀：-cede, -ceed, -cess, -cease

【来源及含义】Latin: to be in motion; to go, to go away, to yield, to give up, to withdraw

【同源单词】abscess, accede, access, access, accessibility, accessible

词根词缀：retro-, retr-

【来源及含义】Latin: back, backward, backwards; behind

【同源单词】arrear, regurgitant menstruation, retroact, retroaction, retroactive, retroactively