The word "more gummous" refers to something that is more sticky or adhesive in texture. Its spelling can be quite tricky, as it contains the rare letter "u" twice. The correct way to spell it is /mɔːr ˈɡʌməs/, with the phonetic transcription indicating a long "o" sound followed by a short "u" sound. The "us" ending in gummous is pronounced as "əs". Overall, the spelling emphasizes the uniqueness of this uncommon word.