What is the difference between barren and arid?

Barren land, usually level or slightly rolling land, with sandy soil and few trees and reletively infertile, even with some moisture present. Arid is unproductive because of the lack of moisture. Arid may refer to desert of semi desert climates, warm in the day but cold at night.

The Word 'barren' springs from an old French Word about 1300AD probably borrowed from an older Germanic language. The Word referred to 'Land', but when adopted by the English, referred to women unable to bear children .

The Word Arid derived from Latin 'Aridus' meaning 'to be dry'