The spelling of the word "more azureous" is based on the phonetic transcription of its pronunciation. The first syllable "mor" is pronounced as [mɔː], and the following syllable "e" is pronounced as [ɛ]. The word "azureous" is pronounced as [æʒˈjʊərɪəs], where the stress is on the second syllable "zure." The spelling of this word is based on the Latin root "aureus" for gold, and "azurum" for blue, hence the combination of "azureous." This word refers to something that is more blue than azure.
The term "more azureous" does not have a specific etymology because it is not a commonly used or recognized word. "Azureous" itself is also not a widely recognized word, with "azure" being the more commonly used term.
"Azure" is derived from the Latin word "aureus", meaning "sky-blue" or "golden". It was adopted into French as "azur" before being anglicized as "azure" in the 14th century. The color term typically refers to a bright blue color resembling a clear sky or the gemstone lapis lazuli.
However, "more azureous" seems to be an inflected form of "azure" using the comparative "more". Keep in mind that this is not a common or standard construction, and its specific etymology may not exist.