1) Age 1) Become passe 2) Change 3) Go out of style 4) To become obsolete 
• (v. i.) To become obsolescent.
Ob`so·lesce' intransitive verb [ Latin obsolescere . See Obsolescent .] To become obsolescent. [ R.] Fitzed. Hall. 
[v] - become obsolete, fall into disuse
obsolesce 1. To become obsolete; to fall into disuse: 'This word has not obsolesced, yet, but it is rarely used these days.' 2. That which is or is becoming obsolescent.