词根词缀：po-, poo-, -poa-

【来源及含义】Greek: grass, a grassy place; meadow, meadows

【同源单词】Poa, Poaceae, poaceous, poad, poic, poocole

词根词缀：pratin-, pratini-

【来源及含义】Latin: meadow-green, grassy

【同源单词】pratincole, pratincolous, pratinicoline, pratinicolous