The spelling of the word "Teryll" can be explained using the International Phonetic Alphabet (IPA). The first syllable "Ter" is pronounced as /tɛr/, with the "e" sound being short and the "r" sound emphasized. The second syllable "yll" is pronounced as /ɪl/, with the "y" sound being short and the "l" sound emphasized. Therefore, the correct spelling of the word is T-e-r-y-l-l. It is important to use correct spelling to ensure clear communication and avoid confusion.