The spelling of the name "derosier" is pronounced as /dɛrəʊˈsiər/ according to the International Phonetic Alphabet (IPA). The word has a total of three syllables, with the primary stress on the second syllable. The "d" at the beginning is a voiceless alveolar stop, while "e" is pronounced as "ɛ" which is an open-mid front unrounded vowel. "R" is pronounced as a retroflex approximant, while "o" is pronounced as "əʊ" which is a diphthong sound. "Sier" is pronounced as "siər" which has the final syllable pronounced as an unstressed schwa.