词根词缀：ne-, neo-

【来源及含义】Greek: new, recent, current, young

【相关词根词缀】Cross references of word families related to: "new, recent": cen-, ceno-; nov-, novo-.

【同源单词】angioneoplasm, neallotype, nealogy, neanic, neanthropic, nearctic

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