Definition of revirescent in US English:

revirescent

adjective

rare
  • That grows fresh or new again; flourishing anew.

Origin

Mid 17th century; earliest use found in Richard Harwood (d. 1669). From classical Latin revirēscent-, revirēscēns, present participle of revirēscere to become green again, show signs of new growth, to become young and vigorous again, to be restored to a flourishing condition from re- + virēscere.