Desuetude
Pronunciation : Des"ue*tude
Part of Speech : n.
Etymology : [L. desuetudo, from desuescere, to grow out of use, disuse; de + suescere to become used or accustomed: cf. F. d?su?tude. See Custom.]
Definition : Defn: The cessation of use; disuse; discontinuance of practice, custom, or fashion. The desuetude abrogated the law, which, before, custom had established. Jer. Taylor.
Source : Webster's Unabridged Dictionary, 1913