desuetude

n.

废弃，不用；

1. These words have fallen into desuetude.
   这些词如今已经不用了。

Desuetude
Desuetude
Desuetude as a Defense
Desuetude among New English Words
Desuetude and Declaratory Judgment: A New Challenge to Obsolete Laws
Class pronoun desuetude in the Moore-Dagbani subgroup of Gur
CLASS PRONOUN DESUETUDE IN THE M (~)(~) RE-DAGBANI SUBGROUP OF GUR
What Did Lawrence Hold? Of Autonomy, Desuetude, Sexuality, and Marriage
Guarantee Clause of Article IV, Section 4: A Study in Constitutional Desuetude, The
Termination of treaties in international law: The doctrines of rebus sic stantibus and desuetude