The word "more stupefactive" is a multisyllabic word with a complex pronunciation. The IPA phonetic transcription for this word is /mɔː stuːˈpɛfəktɪv/. The first syllable "more" is pronounced with an open-O sound, followed by a stressed syllable "stu" with a long oo sound. The third syllable "pef" is pronounced with a short e sound, and the final syllable "active" has the emphasis on "ac" with a short i sound. This word refers to something that causes extreme dullness or confusion in one's senses.
The term more stupefactive is a combination of the adjective stupefactive and the adverb more.
The word stupefactive itself is derived from the verb stupefy, which comes from the Old French word estuper meaning bewilder or stun. It entered English in the 17th century, referring to something that causes a state of being stunned, dazed, or bewildered. The suffix -ive is added to form the adjective stupefactive, indicating something that has the quality or ability to stupefy.
The addition of the adverb more creates the comparative form, suggesting a higher degree of stupefying effect. Therefore, more stupefactive implies a greater capacity to cause stupefaction than something described as simply stupefactive.