to revive (somebody) from unconsciousness
to impart new energy or vigour to (somebody or something)
to regain consciousness
resuscitation /-ʹtaysh(ə)n/ noun
resuscitative /-tətiv/ adj
resuscitator noun
[Latin resuscitatus, past part. of resuscitare, literally ‘to stir up again’, from re- + suscitare to stir up, from sub-, sus- up + citare: see cite]