Crosspiece (noun)

A piece of material or structure that extends across or transversely from one side to the other.

Origin:

The word 'crosspiece' is derived from the old english word 'cros' meaning 'across' or 'across from' and 'piec' meaning 'a piece' or 'a part'. it has been in use since the 15th century.

Examples:

1. The crosspiece was added for additional support to the bridge.
2. The crosspiece of the ladder was wobbly and needed to be fixed.
3. The crosspiece was attached to the frame of the bed for stability.
4. The crosspiece on the table served as a brace for the legs.
5. The crosspiece on the fence was designed to prevent people from climbing over.