You can repaint anything. You should sand the surfaces to smooth out the wood and to create a porous surface. Clean any dust or crud off of the stairs before painting again. If you are going to stain the surface, then you will have to remove the paint first. To do this, you can either strip or sand the stairs.
The decorative wood on a staircase is called "wainscot"
First, remove any paint or other finishes. Use sandpaper, electric sander, and paint scrapers.
There really isn't a way to remove a paint thinner stain from wood furniture. You must repaint or re-stain the furniture.
Repaint is a verb.
You have to defeat the two wooden guys on the next level. Just up the stairway.
The stairway was steep. I avoided the dark stairway.
I had to repaint my picture because it was so sloppy.
Stairway is in the key of A minor.
Stairway. No Doubt.
On the Broad Stairway was created in 1913.
Staircase / stairway = l'escalier (masc.)
The plural form of "stairway" is "stairways".