desuetude

desuetude
[dɪˈsjuːɪtjuːd, ˈdɛswɪ-]
noun
  1. [mass noun](formal)a state of disuse
    (正式)废弃,不用
    the docks fell into desuetude.
    这些码头已废弃不用了。
语源
  1. early 17th cent. (in the sense cessation): from French, from Latin desuetudo, from desuet- 'made unaccustomed', from the verb desuescere, from de- (expressing reversal) + suescere 'be accustomed'
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