词根：-fus-, -fund-

【词根含义】：熔,注

【词根来源】：来源于拉丁语动词fundo, fundere, fundi, fusus(熔,注)。

【同源单词】：confuse, confusion, diffuse, diffusion, diffusive

前缀：ef-

【词根来源】：=ex-,用在f前。

【同源单词】：effect, effective, effectively, effectuate, efferent

词根词缀：ex-, e-, ef-

【来源及含义】Latin: a prefix occurring in words of Latin origin used in the senses: out, out of, from; upward; completely, entirely; to remove from, deprive of; without; former [said of previous holders of office or dignity]

【相关描述】Before f, ex- becomes ef-; before all voiced consonants (as b, d, g, etc.) ex- becomes e-.

【同源单词】e pluribus unum, educate, educe, efface, effacement, effete

词根词缀：fus-, fun-, fund-, fut-, found-

【来源及含义】Latin > French: pour, melt, blend

【同源单词】affuse, affusion, atmospheric diffusion, autoinfusion, autologous transfusion, autotransfusion