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For example, you can check out all the words with root –logy, such as agriology, anthropology, biology, cardiology, choreology, Christology, chronology, cosmology, etc.\n\nGet even more with ETYMONLINE PREMIUM:\n• No Ads - Enjoy a calm, ad-free reading environment\n• Offline dictionary - Search and view etymology without the need of an internet connection\n\n- Privacy Policy: \nhttps://www.etymonline.com/legal/privacy\n\n- Terms of Use:\nhttps://www.etymonline.com/legal/terms","facts":{"developer_id":813629615,"developer_url":"https://www.etymonline.com","first_released":"2019-09-04T07:00:00Z","support_url":"https://www.etymonline.com/","privacy_url":"https://etymonline.com/legal/privacy","website_url":"https://www.etymonline.com/","app_version":"2.10.415","release_notes":"Updated dictionary content, improved search, and bug fixes.","rating_current_version":4.92543,"rating_count_current_version":11787,"star_counts":[60,22,64,445,11196],"genres":["Education","Reference"],"languages":["EN","ZH"],"content_advisories":["Infrequent/Mild Mature/Suggestive Themes","Infrequent/Mild Profanity or Crude Humor","Infrequent/Mild Alcohol, Tobacco, or Drug Use or References"],"device_families":["iphone","ipad","ipod"],"chart":null},"freshness":{"apple_read_at":"2026-10-20T20:52:12.713Z","catalog_read_at":"2026-10-20T20:52:12.713Z","reviews_checked_at":"2026-10-20T20:52:12.713Z","summary_written_at":"2026-10-16T06:07:51.808Z","placed_at":"2026-10-15T06:22:53.111Z","scored_at":"2026-10-21T19:35:14.120Z"},"editorial":{"one_liner":"Searches English word origins and shared roots using Douglas Harper's Online Etymology Dictionary.","what_is":"Etymonline English Dictionary is the official app of Douglas Harper's Online Etymology Dictionary, drawn from etymonline.com. 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