obsolescence
n.
1809; see obsolescent + -ence. Phrase Planned obsolescence coined 1932, revived as a disparaging term 1950s.
| 词汇 | obsolescence | 
| 词根词缀 | Online Etymology Dictionary obsolescence n. 1809; see obsolescent + -ence. Phrase Planned obsolescence coined 1932, revived as a disparaging term 1950s. | 
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