The word "czerkas" is commonly misspelled due to its unusual phonetic makeup. In IPA transcription, it is spelled /t͡ʂɛr.kas/. The ‘cz’ sound is a voiceless postalveolar affricate, which is pronounced like a combination of ‘ch’ and ‘sh’. The ‘er’ sound is also unique and represents a vowel sound that is similar to the American English pronunciation of ‘air’. Lastly, the ‘kas’ sound is pronounced similarly to ‘kass’. So, to spell "czerkas" correctly, one must pay attention to its unique phonetic makeup.