I am sorry to say that your palm is 100% completely dead. Once that centermost frond turns completely brown, the growing potential is lost and there's no bringing it back. The entire plant will have to be removed.
My guess is it simply did not survive the winter months. It is difficult to tell from your photo, but it appears to be a Robellini or Pygmy Date Palm — whose cold hardiness is rated down to USDA Zone 9a (20 °F, -6.6 °C).
Has the frost killed it off? If the centre part was frozen, then it's probably dead.
Have a look at this YouTube video:
It may possibly still be alive, but if after a few months you don't get any growth it'll be dead. I've got one and it grows so slowly that I thought it was dead before. By the photo it looks like yours is dead, but it depends if the middle part where the leaves come from is dead or not.