The spelling of the word "Siddall" can be confusing for those unfamiliar with Irish phonetics. In IPA transcription, it is spelled /sɪdˈɔl/. The "d" is pronounced as a voiced flap in Irish Gaelic, similar to the sound in the English word "butter". The double "ll" represents a voiceless velarized alveolar lateral approximant, which is a unique sound in the Irish language. These phonetic elements combine to create the distinctive spelling of the surname "Siddall".