Desuetude \Des"ue*tude\, n. [L. desuetudo, from desuescere, to grow out of use, disuse; de + suescere to become used or accustomed: cf. F. d['e]su['e]tude. See {Custom}.] The cessation of use; disuse; discontinuance of practice, custom, or fashion. The desuetude abrogated the law, which, before, custom had established. --Jer. Taylor. web1913
desuetude n : a state of inactivity or disuse wn