The spelling of the word "Turkeis" may seem different but it is actually a valid form of the word "Turquoise". The pronunciation remains the same in both spellings, which is /ˈtɜːrkwɔɪz/. The origin of the word comes from the French word "turquois" which was derived from the Old French term "pierre turque" meaning "Turkish stone". Turquoise is a blue-green mineral used in jewelry since ancient times and it's considered as a valuable gemstone with cultural significance.