词根词缀：pedo-, paedo-, ped-, paed-, paido-, paid-

【来源及含义】Greek: child, boy; infant

【相关描述】The British tend to use paed- while those in the United States tend to use ped-. Remember that the Greek ped- means "child" while the Latin ped- means "foot". Don't confuse this Greek element with another Greek pedo- which means "ground, soil, earth".

【同源单词】callipedia, cyclopedia, cyclopedic, encyclopedia, encyclopedian, encyclopedic

词根词缀：peri-

【来源及含义】Greek: around, enclosing, surrounding, about, near, close; often used as a prefix

【相关词根词缀】 Related "around, round, surrounding" units: ambi-; ampho-; circ-; circum-; cyclo-, -cycle; gyro-.

【同源单词】abdominal fascia, adominoperineal, aeroperitonia, anoperineal, colpoperineoplasty, colpoperineorrhaphy

词根词缀：perisso-, periss-

【来源及含义】Greek: extraordinary; superfluous, redundant; odd, odd-numbered

【同源单词】perissodactyl, Perissodactyla, perissodactylism, perissodactylous, perissology, perissoped