词根：-ped-
【词根含义】：足;儿童
【词根来源】：原始印欧语ped-,pod-(足)在希腊语中的派生词有pous(足)和pedon(土壤,儿童,足);在拉丁语中的派生词有pes, ped.is, m(足)和pod.ium(阳台,剧场的包厢)等。
【同源单词】：biped, centipede, expedient, expedite, expedition
前缀：e-, ex-
【词根含义】：出,向外;向上
【词根来源】：e-用在b, c, d, g, j, l, m, n, r, v前;ex-用在s前时,s常省略。来源于拉丁语前缀ex-。
【同源单词】：edit, edition, editor, editorial, educate
词根词缀：-itious
【来源及含义】Latin: a suffix; tending to, characterized by
【同源单词】adventitious, expeditious, fictitious
词根词缀：-ous, -ious, -eous
【来源及含义】Latin: full of or having the qualities of; in chemistry, a suffix denoting that the element indicated by the name bearing it, has a valence lower than that denoted by the termination -ic; as, nitrous, sulphurous, etc., as contrasted with nitric, sulphuric, etc.
【相关描述】Only a small number of the hundreds of examples are presented because there are just too many to include at this time.
【同源单词】abdominous, abiogenous, ablepharous, abstemious, acanthaceous, acanthocephalous
词根词缀：ped-, pedi-, -pedal, -ped, -pede, -pedia
【来源及含义】Latin: foot, feet; people often see this ped element in other words. When people refer to "pedal extremities", they mean "feet". When anyone pushes the pedals of a bicycle, it is done with the feet. A pedestrian must use the feet for walking. A quadruped has four feet while a centipede has "100 feet"; or a large number of them because it may be impossible to count all of them.
【相关词根词缀】 Related "foot, feet" units: melo-; planta-; podo-; -pus.