The spelling of the word "more perspiry" is derived from the base form "perspire", meaning to sweat. The additional suffix "-y" indicates that the noun form of the word is being used, indicating a state of sweating. The suffix "-er" then indicates a comparative form, meaning "more sweaty". The pronunciation of "more perspiry" can be represented in IPA phonetic transcription as /mɔːr pəˈspaɪəri/, with emphasis on the second syllable of "perspiry".