hearthstone
n. countable C2 Proficiency hearth·stone
n. a stone that sits in the middle of a fireplace. It is the part that the fire burns on and is often a symbol of a home or family.
n. a stone slab or block forming the floor of a fireplace. Often used metaphorically to represent the home, family, or the hearth as a central domestic space.
The old hearthstone was covered in soot and ashes.
The family gathered around the fireplace, their faces lit by the glow of the hearthstone.
In many traditional folk tales, the hearthstone serves as a sacred boundary between the domestic world and the unknown dangers of the forest.
From hearth + stone.