词根词缀：podo-, pod-, -poda, -pod, -pode, -podium, -podia, -podial, -podous, -pody

【来源及含义】Greek: foot, feet

【相关词根词缀】 Related "foot, feet" units: melo-; ped-; planta-; -pus.

【同源单词】apod, apodal, arthropod, asthenopodia, atelopodia, bipod

词根词缀：tetra-, tetr-

【来源及含义】Greek: four; a number used as a prefix

【相关词根词缀】 Cross references of word families that are related, partially or totally, to: "four, fourth": quadri-; quatr-; tessara-.

【同源单词】rotundo-tetragonal, tessaraglot, tetrabasic, tetrablastic, tetrabrach, tetrabrachius