The spelling of the word "Arthrongus" may appear confusing at first glance, but it follows a consistent pattern of English orthography. The first syllable "arthro" uses the "th" digraph for the voiced dental fricative sound /θ/, while the second syllable "ngus" uses the letter "n" before the velar nasal consonant /ŋ/. The stress is on the second syllable, as indicated by the capital letter "O" in the middle of the word. The IPA transcription for "Arthrongus" is /ɑrˈθrɔŋɡəs/.