des·ue·tude (dĕswĭ-td′, -tyd′)
A state of disuse or inactivity.
[French désuétude, from Latin dēsuētūdō, from dēsuētus, past participle of dēsuēscere, to put out of use : dē-, de- + suēscere, to become accustomed; see s(w)e- in the Appendix of Indo-European roots.]
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