The spelling of the name "Derreck" can be explained using the International Phonetic Alphabet (IPA) as /dɛrɛk/, where the "e" sound is pronounced like "eh" in "wet" and the "r" is pronounced with a slight roll. The double "r" in the name indicates a stronger emphasis on the "r" sound. Overall, the spelling of the name aligns well with its pronunciation and is a common variation of the name "Derek."