The spelling of the word "Haroldson" can be explained through its phonetic transcription. It is pronounced as /ˈhærəldsən/ which indicates that the first syllable is stressed, and the word is composed of three syllables. The "h" is aspirated, and the "a" is pronounced as in "cat," followed by a schwa sound. The letter "r" is pronounced with a slight roll, and the "s" is unvoiced. The final syllable is pronounced with a schwa sound followed by an "n."