词根：-vac-, -vacu-, -van-, -void-

【词根含义】：空

【词根来源】：-vac-来源于拉丁语动词vac.o, vac.are, vac.avi, vac.atum(空);-vacu-来源于拉丁语动词vacuo, -are, -avi, -atus(使空); -van-来源于拉丁语形容词van.us, van.a, van.um(空);-void-来源于古法语vuide(空的)。均可追溯至原始印欧语wan-(缺乏的)。

【同源单词】：vacancy, vacant, vacate, vacation, vacationist

词根词缀：-able

【来源及含义】Latin: a suffix; expressing capacity, fitness to do that which can be handled or managed, suitable skills to accomplish something; capable of being done, something which can be finished, etc.

【相关描述】A suffix that forms adjectives. The suffix -ible has related meanings; expressing ability, capacity, fitness; capable of, fit for, able to be done, can be done, inclined to, tending to, given to.

This list is only a small sample of the thousands of -able words that exist in English.

【同源单词】abdicable, -able, abolishable, abominable, abradable, acceptable