词根词缀：cumulo-, cumul-, cumuli-

【来源及含义】Latin: a heap, heap up; gather together, bunch together, cram, amass, compile; pile up

【同源单词】accumulate, accumulation, accumulative, accumulatively, accumulativeness, altocumulus

词根词缀：-ulus, -olus, -ulum, -ola

【来源及含义】Latin: suffix; little, small

【同源单词】abaculus, acaulus, altocumulus, annulus, anulus, anulus ciliaris