词根词缀：oleo-, ole-, -oleic, ol-

【来源及含义】Greek > Latin: [olive] oil; fat

【相关词根词缀】Related fat-word units: adipo-; lard; lipo-; obeso-; omento-; pimelo-; pio-; sebo-; steato-.

【同源单词】eleotherapy, lanolin, linoleate, linoleic acid, linoleum, oleaginous

词根词缀：petro-, petr-, petri-, peter-

【来源及含义】Greek > Latin: stone, rock

【相关词根词缀】 Related "stone, rock" word families: lapid-; litho-; saxi-; stele-.

【同源单词】Peter, petracide, petrichor, petricole, petricoline, petricolous