The spelling of the word "Altha" may seem unusual, but it can be explained through its phonetic transcription: /ˈælθə/. The "a" in the first syllable is pronounced as the short "a" sound, while the "th" in the second syllable is pronounced as the voiceless dental fricative "θ". The final syllable has a schwa sound represented by "ə", which is a neutral vowel sound. Together, these sounds create the unique spelling of "Altha."