Balsa (noun)

A type of wood that is lightweight and soft, often used for making model airplanes and rafts.

Origin:

Balsa comes from the spanish word "bálsamo" meaning "balm" or "healing", which in turn is derived from the latin word "balsamum".

Examples:

1. The model airplane was made of balsa wood.
2. He built a raft out of balsa logs to float down the river.
3. Balsa wood is often used in construction of model airplanes due to its light weight.
4. The balsa wood bridge was able to support the weight of the small car.
5. A balsa wood raft is not durable enough for long distance travel.