Learn the etymology of English in Android devices, with Root Words dictionary app
If you interested in the etymology of the English language, Root Words dictionary is a free app working off line that can help.
Root Words contains also flash-card and multiple choice tests in case you’d like to test yourself or students and supports the creation of a favorites list.
As you would expect from such an app, it offers also examples of word use besides definitions and expositions of various meanings. It gives also the pronunciation of words.
Especially if you are a student, or in any way interested seriously in English etymology, usually going back to Greek and Latin, you will find this app really useful. Some words are missing, which hopefully is fixed in the course of time as the app is updated, and sometimes some more examples regarding particular words would be very welcome.