Des"ue*tude (?), n. [L. desuetudo, from desuescere, to grow out of use, disuse; de + suescere to become used or accustomed: cf. F. d'esu'etude. See Custom.]
The cessation of use; disuse; discontinuance of practice, custom, or fashion.
The desuetude abrogated the law, which, before, custom had established.
© Webster 1913.