Baseboard (noun)

A board forming the base of an interior wall and covering the junction of the wall and floor.

Origin:

Late 19th century: from base + board.

Examples:

1. The baseboard in the living room was made of dark cherry wood.
2. He ran his hand along the smooth surface of the baseboard, admiring the craftsmanship.
3. The baseboard in the kitchen was badly scuffed and needed to be repainted.
4. The baseboard provided a finished look to the room and hid any gaps between the wall and floor.
5. He carefully measured the length of the baseboard, making sure it would fit the wall perfectly.