From the Latin arabilis, fit to be plowed.

In use, it distinguishes farmland as opposed to pasture.

2 minutes ago, JamesSavik said:

The Mississippi Delta is famous for three things: arable lands with soil that can grow almost anything, the Blues, and unless you are used to it, summer heat and humidity that is indescribable.

You left out mosquitoes.

9 minutes ago, JamesSavik said:

They are our state bird. You have to keep moving or swarms of them will carry you off.

Good thing I can walk through a cloud of them and they part like the Red Sea.

37 minutes ago, Bill W said:

Then what repels them? 

With me it's my blood chemistry, which seems unique.

8 hours ago, drpaladin said:

With me it's my blood chemistry, which seems unique.

Eating garlic keeps away blood suckers too, besides vampires... Allegedly