词根词缀：-fer, -ferous

【来源及含义】Latin: to bear, to carry; to produce; to bring

【相关词根词缀】 Cross references of word families related to "bear, carry, bring": duc-; ger-; later-, -lation; phoro-; port-.

【同源单词】ad referendum, afferent, aquifer, auriferous, circumference, confer

词根词缀：pesti-, pest-

【来源及含义】Latin: plague, contagion

【同源单词】nonpersistent pesticide, persistent pesticide, pest, pest resurgence, pesthouse, pesticemia