obsol= to decay 腐烂

obsol= to decay 腐烂

decay
UK [dɪˈkeɪ]
US [dɪˈkeɪ]
n.
腐烂；腐朽；(社会、机构、制度等的)衰败，衰退，衰落
v.
(使)腐烂，腐朽；(建筑、地方等)破败，衰落，衰败；(力量、影响等)衰弱，衰退，衰减
de 向下 + cay 落下；降临 → 向下掉 → 衰退
第三人称单数：decays现在进行时：decaying过去式：decayed过去分词：decayed

obsolete words
UK [ˈɒbsəliːt wɜːdz]
US [ˌɑːbsəˈliːt wɜːrdz]
废弃词;不再使用的词

no longer in use
obsolete words
synonym: disused;

Obsolete words found in old texts
在旧文本中发现的不再使用的词语

Obsolete word is a temporal label commonly used by lexicographers (that is, editors ofdictionaries) to indicate that a word (or a particular form or sense of a word) is no longer in active use in speech and writing."In general," notes Peter Meltzer, "the difference between an obsolete word and anarchaic word is that, although both have fallen into disuse, an obsolete word has done so more recently" (The Thinker's Thesaurus, 2010).The editors of The American Heritage Dictionary of the English Language (2006) make this distinction:Archaic. [T]his label is attached to entry words and senses for which there is only sporadic evidence in print after 1755 . . ..Obsolete. [T]his label is attached to entry words and senses for which there is little or no printed evidence since 1755.In addition, as Knud Sørensen points out, "it sometimes occurs that words which have become obsolete in Britain continue to be current in the United States (compareAmer. Engl. fall and Brit. Engl. autumn)" (Languages in Contact and Contrast, 1991).

obsolete
UK [ˈɒbsəliːt]
US [ˌɑːbsəˈliːt]
adj.
淘汰的；废弃的；过时的
vt.
淘汰；废弃
obsol 腐烂 + ete → 腐烂的 → 过时的
第三人称单数：obsoletes现在进行时：obsoleting过去式：obsoleted过去分词：obsoleted

Automation has obsoleted many unskilled workers.
自动化使很多非技术工人受到淘汰。

obsoletism
废弃；废词
obsol 腐烂 + et + ism 表状态 → 废弃

obsolesce v.
成为过时；成为废物；荒废
obsol 腐烂 + esce 动作开始或正在进行 → 腐烂 → 被废弃

obsolescence
UK [ˌɒbsəˈlesns]
US [ˌɑːbsəˈlesns]
n.
过时；陈旧；淘汰
obsolesc 被废弃，被淘汰 + ence 性质，状态 → 过时；荒废

The primary weaknesses of the cost approach are: Its inability to measure the full amount of economic obsolescence;
成本法的主要缺点是：它不能测算经济性陈旧的全部影响.

obsolescent
UK [ˌɒbsəˈlesnt]
US [ˌɑːbsəˈlesnt]
adj.
过时的；废弃的；淘汰的
obsol 腐烂 + escent 开始出现…的 → 开始腐烂 → 在逐步废弃的

This word is now obsolescent.
这个字现在已废弃不用了。

Obsolescent vs. obsolete

Things that are obsolete are out of date or no longer in general use. Things that are obsolescent are fading from general use and soon to become obsolete. For example, the Windows XP operating system (released in 2001) is not obsolete because some people still use it, but it is obsolescent because it will presumably be falling out of use in the coming years.

Things that are obsolete are usually not so out of date that they’ve been forgotten, however. When obsolete things are forgotten, they become archaic.

Because things that are obsolescent are becoming obsolete, phrases such as becoming obsolescent are redundant.