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：ptilo-, ptil-, ptilono-

【来源及含义】Greek: feather [soft], down

【相关词根词缀】 Related "feather, feather-like; soft down, plumage" word units: penna-; pinni-, pin-; plum-, -plume; pterido-; ptero-.

【同源单词】cryptoptile, haploptile, mesoptile, metaptile, neossoptile, protoptile