The Douglas Harper's Online Etymology Dictionary app is the official and complete app of the popular website etymonline.com. It offers a range of useful features to help users understand the origins of words and improve their vocabulary. The app provides instantaneous search with spelling suggestions, making it fast and easy to use on Android devices. Additionally, the app offers an offline dictionary feature, which allows users to find out word origins anytime, anywhere (Premium only). The app is also a universal app, meaning it works on both Android phones and tablets.

One of the most useful features of the app is the Related Words feature, which allows users to easily access words that share the same origin or root. For example, users can check out all the words with the root –logy, such as agriology, anthropology, biology, cardiology, choreology, Christology, chronology, cosmology, and more. This feature can be particularly helpful for those looking to expand their vocabulary or gain a deeper understanding of the English language.

For those looking for even more features, the app offers an ETYMONLINE PREMIUM version. This version includes an offline dictionary, allowing users to search and view etymology without the need for an internet connection. Additionally, the premium version offers an ad-free reading environment, providing a calm and distraction-free experience for users.

Overall, the Douglas Harper's Online Etymology Dictionary app is a valuable tool for anyone looking to improve their vocabulary or gain a deeper understanding of the English language. With its range of features and easy-to-use interface, the app is a must-have for anyone interested in word origins and etymology.