The word "arsenitian" can be a bit confusing to spell. It is actually pronounced as "ar-sen-EE-shun", with the emphasis on the second syllable. The IPA phonetic transcription for this word is /ɑrˈseniʃən/. This word refers to a mineral, specifically a type of sulfide that contains arsenic. Despite its difficult spelling, "arsenitian" is an important term to know for geologists and mineralogists who study rocks and minerals.
The word "arsenitian" does not have a specific etymology as it is not a widely recognized or commonly used term. It appears to be a combination of two words, "arsenic" and "itian". The word "arsenic" originates from the Greek word "arsenikon", which means yellow orpiment. It was later adapted into Latin as "arsenicum". "Itian" does not correspond to any known word or root. Thus, it can be inferred that "arsenitian" might not have a well-established etymology or linguistic roots.