The word 'vale' entered English in the 14th century, borrowed directly from the Old French 'val', which itself descended from the Latin 'vallis', meaning 'valley'. The Latin term is thought to derive from a Proto-Indo-European root meaning 'to be strong' or 'to be powerful', possibly evoking the strong, containing walls of a valley. Over time, 'vale' became a poetic and formal synonym for 'valley', often used in place names (e.g., "Vale of White Horse") and literary contexts to convey a sense of pastoral beauty or solemnity, as famously seen in the phrase "vale of tears."

The word 'vale' is a simplex, derived as a whole from Latin 'vallis', meaning valley. It functions as a noun in English.