The spelling of the word "dettmer" is composed of two syllables: "dett" and "mer." The first syllable, "dett," is pronounced /dɛt/, with a short "e" sound and a "t" sound. The second syllable, "mer," is pronounced /mɚ/, with a short "e" vowel sound and an "r" sound. When combined, the word is pronounced /'dɛtmɚ/. The spelling of "dettmer" remains consistent with traditional English spelling conventions, with the final "er" indicating a person or thing.