That leaf looks very much like my bat plant, which is in the orchid family. Google Tacca Chantrieri, it's scientific name, and see if this is your plant. Beautiful and strange flowers if given the right conditions, it needs lots of water and filtered sun. Should never dry out and that is what looks like happened to these leaves.

It's a calathea. You might head over to the House Plants Forum for a diagnosis and advice on the browning.

A member of the Houseplant Forum has identified it for me. Farfugium Japonicum.

I have 2 different cultivars of this plant. The leaves move up in a folding pattern at night. That is why it is called a "prayer plant" It is very cool actually. they like to stay moist. I think you can lift it out of that pot and it will be in another container that has drainage holes. good luck!