词根：-di-

【词根含义】：日

【词根来源】：来源于拉丁语dies(日)。

【同源单词】：meridian, postmeridian

词根：-med-, -medi-

【词根含义】：中间;医药

【词根来源】：“医药”的意义来源于拉丁语词根med-及其在拉丁语中派生的词汇mederi(治愈),medicus(医生),medicina(临床)和medicari(治疗)等；“中间”的意义来源于拉丁语形容词 medius, media, medium(中间的)。

【同源单词】：amid, medicable, medical, medicine, midday

前缀：post-

【词根含义】：后;次

【词根来源】：来源于拉丁语post。

【同源单词】：postgraduate, posthumous, postmeridian, postpone, postscript

词根词缀：di-, die-, -diem, diurn-

【来源及含义】Latin: day

【相关描述】Don't confuse this dies, "day" (DEE uhs) with the verb dies (DIGHZ) which refers to "dying" or "death".

【相关词根词缀】Another related "day" unit is located at hemer-.

【同源单词】adjourn, adjournment, antemeridian, Carpe diem, circadian, diary

词根词缀：medio-, medi-

【来源及含义】Latin: middle

【同源单词】admedial, ante meridian, antemeridian, anteromedial, anteromedian, aurea mediocritas

词根词缀：post-

【来源及含义】Latin: after, behind, later, subsequent

【同源单词】a posteriori, anemic necrosis, Anno post Romam conditam, anteroposterior, Culpam maiorum posteri luunt, dorsoposterior