Why did they name the country of Cuba Cuba?

There are several theories about the origin of the name "Cuba".

One theory is that the name comes from the Taíno language, which was spoken by the indigenous people of the Caribbean. In Taíno, "cuba" means "where fertile land is abundant".

Another theory is that the name comes from the Portuguese word "cubo", which means "cube". This theory is based on the fact that Cuba is shaped like a cube.

A third theory is that the name comes from the Spanish word "coba", which means "cave". This theory is based on the fact that there are many caves in Cuba.

The most likely theory is that the name "Cuba" comes from the Taíno language. However, it is possible that the name also has some influence from the Portuguese and Spanish languages.