The word "arteriositas" refers to the hardening and thickening of arterial walls. Its spelling can be a bit confusing, but its pronunciation is straightforward. The word is spelled /ˌɑrtɪərɪoʊˈsaɪtəs/ in IPA phonetic transcription, with the accent on the penultimate syllable. This translates to "AR-teer-ee-oh-SY-tuhs" in English, with the first syllable pronounced with a long "a." Remembering the correct spelling will come with practice, but knowing how to pronounce it correctly is a great start!