The spelling of the word "Xyphodymus" can be quite tricky due to its unique combination of letters. To break it down phonetically, it would be pronounced as /zaɪfoʊdɪməs/. The "Xy" sound is replaced with "Zy" and is pronounced as "Zai," while the "ph" combination sounds like "f." The "o" in "ody" is pronounced as "oh," and the final "us" is pronounced like "əs." Overall, it takes some practice to get used to the spelling and pronunciation of this word.