词根词缀：aqua-, aquatic-, aqui-, aqu-, -aquatically, aque-, -aqueous

【来源及含义】Latin: water, watery solution

【相关词根词缀】 Cross references of word families that refer to "water": hydat-; hydro-; hygro-.

【同源单词】alluvial aquifer, aqua, aqua exclusa, aqua potabile, aqua regia, aqua weed cutter

词根词缀：mut- (silent)

【来源及含义】Greek > Latin: unable to speak, inarticulate, dumb; uttering no sound, silent, still, quiet

【同源单词】Cave tibi cane muto, mute, muted, muteness, mutism, selective mutism

词根词缀：silen-

【来源及含义】Latin: absence of sound; quiet, still

【同源单词】Cave tibi cane muto, silence, silencer, silent, silentiary, silently