Orange

Orange is defined as " 1a. any of several southeast Asian evergreen trees of the genus Citrus, having fragrant white flowers and round fruit with a yellowish or reddish rind and a sectioned pulpy interior. b The fruit of any of these trees, having a sweetish acidic juice." Our English word "orange" started as the Sanskrit word narangah and its evolution into "orange" follows its trail west from India. In the deserts of Arabia, "orange" was narang in Persian and naranj in Arabic. In Italy the Old Italian word for "orange" was melarancio from mela, "fruit," and arancio, "orange tree," which is from the Arabic word naranj. Old French translated the Old Italian into pume orenge. Here, the "a" of arancio became an "o" because of French familiarity with the town "Orange." The first recorded use of Middle English orenge is estimated to be around 1380. One wonders if "orange" was recognized as it traveled further west back to India.

Image source: http://www.flickr.com/photos/crazyasamonkey/2807120387/sizes/t/
Definition and word history: AHD