词根词缀：fac-, facil-, fact-, feas-, -feat, -fect, -feit, -facient, -faction, -fic-, -fy, -ficate, -fication

【来源及含义】Latin: to make, to do, to build, to cause, to produce; forming, shaping

【同源单词】Ab officio et beneficio, abortifacient, absorbefacient, absorbifacient, acoustoelectric effect, affair

词根词缀：viva-, vivi-, vivo-, viv-

【来源及含义】Latin: life, alive

【相关词根词缀】 Related life, live-word units: anima-; bio-; -cole; vita-.

【同源单词】antivivisection, antivivisectionism, antivivisectionist, bon vivant, convivial, convivialist