reattain

verb

1. To attain again.

   “On balance, it would seem fair to say that the standards of 1939 were about equalled, being not yet reattained in some respects but excelled in others.”

   “While the Deutsche Bundesbahn has not reattained the pre-eminence in European railway speed that the German railways enjoyed before the 1939-1945 war, speeds in that country are steadily moving upwards [...].”