The word "Fernlie" is spelled as /fɜːnlaɪ/. The first syllable "fern" is pronounced with the sound /fɜː/, which represents the "er" sound in words like "her" and "bird". The second syllable "lie" is pronounced with the sound /laɪ/, which represents the "ai" sound in words like "eye" and "fly". The spelling of "Fernlie" follows the standard English phonetic patterns and reflects the pronunciation of the word.