deficiency
n.
1630s, from deficience (mid-15c.) + -cy; or from Late Latin deficientia, from deficientem (see deficient).
| 词汇 | deficiency | 
| 词根词缀 | Online Etymology Dictionary deficiency n. 1630s, from deficience (mid-15c.) + -cy; or from Late Latin deficientia, from deficientem (see deficient). | 
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