fireboard

Etymology

From fire + board.

fireboard means A board or screen placed over a fireplace when it is not in use. Lexicurio rates it Sui generis — a strength score of 90 out of 100.

noun

A board or screen placed over a fireplace when it is not in use.“I then glanced round the room; and besides the bedstead and centre table, could see no other furniture belonging to the place, but a rude shelf, the four walls, and a papered fireboard representing a man striking a whale.”
A fireplace's mantel.
A piece of wood into which a fire drill is spun to create friction.