When searching for "ghea" on de.google books, i found quite a few hits, that seem from old Austrian or Old High German, a form of gehen. " und ghea wir frisch und fröhlich an die Ausarbeitung". Also i saw the word in the books "Studies in Tanzanian Languages" and "The Cult of Tārā: Magic and Ritual in Tibet" where they seemed like quotes in Tanzanian respectively Tibetan. So i am quite sure this exists in multiple languages, just the English meaning given here i could not find so quickly. The most hits refer to the butter from Indian cuisine that is more often called "Ghee". "I herd an another way was butter in a pan and heat it like you would to make ghea but add herb".
And btw, Ghea is a surname and a place name and GHEA is the "Georgia Home Education Association". 06:49, 23 September 2008 (UTC)