The spelling of the word "fritzler" can be explained using IPA (International Phonetic Alphabet) phonetic transcription. The first syllable "frit-" is pronounced as /frɪt/ with a short "i" sound, followed by the voiceless fricative "f" sound /f/. The second syllable "-zler" is pronounced as /zlər/ with a schwa /ə/ sound and the voiced alveolar fricative "z" /z/ sound. Therefore, the correct spelling of the word "fritzler" reflects its phonetic transcription, and it can be pronounced as /ˈfrɪtslər/ in IPA.