I really don't know.

Bent is an English name for someone who lived on land which grew bent grass, rushes, or reeds.

Yes.

Yes, bent grasses are the most common type of grass used on golf courses. This is a desirable grass for golf course tees, fairways and greens due to their texture and quality. There are more than 100 species belonging to this grass family.

It requires daily watering and mowing. That is why golf greens are made mostly of sand to help drain the water and keep the grass aerated. Bent grass doesn't like soggy roots that's why topsoil isn't used.

They usually fertilize it once or twice a year.