The spelling of "Vicissy duck" may seem strange, but it actually follows the rules of English phonetics. The word is pronounced /vɪˈsɪsi dʌk/, with the emphasis on the second syllable. The "c" and "k" sounds in "Vicissy" are used to represent the "s" and "k" sounds in succession, as in "success" or "access." Similarly, the "c" in "duck" represents the "k" sound, and the "u" represents the "ʌ" sound, as in "up" or "cut." While the spelling may be unconventional, it accurately reflects the pronunciation of the word.