The word "Kolsie" is a phonetically spelled version of the name "Cozy". The spelling follows the English language's rules of phonetics where "c" is pronounced as "k" when followed by "o". The "s" in "cozy" is also pronounced as "z" due to the letter "y" at the end of the word. In IPA phonetic transcription, "Kolsie" can be written as "kəʊzi", to represent the "k" sound, followed by the "o" sound, the voiced "z" sound, and the "i" sound at the end.