Answer: disuse

AnswerCrossword Clue
DISUSEInactivity.
disusethe state of not being used
disuseto stop using
DISUSEState of abandonment
DISUSEAbandonment
DISUSEToy fate
DISUSEWhat old things fall into
DISUSESomething to fall into
DISUSEDesuetude.
DISUSECause of atrophy
DISUSECessation of practice.
DISUSEObsolescence
DISUSERust cause, perhaps
DISUSECessation of practice
DISUSEFate of some old ways
DISUSEWhat obsolete things fall into
DISUSENeglect