The spelling of the word "Mathena" is fairly straightforward. It is pronounced /məˈθiːnə/, with the emphasis on the second syllable. The "a" in the first syllable is pronounced as a schwa sound, and the "th" is pronounced with the tongue between the teeth, as in "this" or "that." The "e" in the second syllable is pronounced as a long "ee" sound, and the final "a" is once again pronounced as a schwa. Overall, the IPA phonetic transcription gives a clear explanation of how to spell and pronounce "Mathena."