The word "able" is derived from the Old English word "abæl", which meant "powerful" or "strong".

Over time, the meaning of "abæl" shifted to indicate capability or capacity, and eventually evolved into the modern English word "able".

Here's a breakdown of the etymology:

* Old English: *abæl* (powerful, strong)

* Middle English: *able* (capable, competent)

* Modern English: *able* (having the necessary power, skill, or resources to do something)

The word "able" has been used in English for centuries and is a common adjective used to describe someone or something that is capable of performing a specific task or achieving a specific goal.