The spelling of the word "Halferty" can be explained using the International Phonetic Alphabet (IPA). The first syllable "hal" is pronounced as /hæl/, with a short "a" sound and a clear "l" sound. The second syllable "fer" is pronounced as /fɛr/, with an "e" sound that is slightly more open than "eh" and a rolled "r" sound. The final syllable "ty" is pronounced as /ti/, with a clear "t" sound and a short "i" sound. Therefore, the IPA transcription of "Halferty" is /hæl.fɛr.ti/.