The spelling of Eidson is pronounced as /ˈaɪd.sən/. The word consists of two syllables, the first being pronounced as "eye" and the second as "son." The letter "e" in the first syllable makes the long vowel sound /aɪ/. The letter "d" and the letters "s" and "o" in the second syllable are pronounced separately. The word "Eidson" is likely a surname or proper noun and does not follow any specific spelling rules or conventions in the English language.