The word "Cookey" is typically spelled with a "y" at the end rather than "ie" as one would expect due to the pronunciation. The phonetic transcription for this word is /kʊki/ which shows that the "oo" sound is pronounced as a short "u" and the "ey" sound is pronounced as a short "i". The spelling with a "y" instead of "ie" is likely due to the influence of other words with similar endings, such as "hockey" and "jockey".
The word "cookey" is a colloquial term derived from the word "cookie". "Cookie" originated from the Dutch word "koekje", which means "little cake". The Dutch word "koek" itself comes from the Proto-Germanic word "kōkōn", meaning "cake" or "biscuit". Over time, through various linguistic influences, the term evolved into "cookie" in English-speaking countries. "Cookey" is a playful variation of "cookie" often used as a slang term or in informal contexts.