The word "Kasandria" is spelled with a "K" instead of a "C" because it is derived from the Greek name "Kassandra". The "K" sound in Greek is represented by the letter "kappa", which is why it is spelled that way. In IPA phonetic transcription, the word is spelled /kəˈsændriə/ which also helps to clarify the pronunciation. So if you ever come across this particular word, just remember to use a "K" at the beginning!