The spelling of the phrase "most midnight" may seem odd, but it is pronounced as [məʊst ˈmɪdnaɪt], emphasizing the stressed syllable of "midnight". The word "most" serves as an intensifier, indicating that something is even more prevalent or notable than usual. Therefore, "most midnight" suggests that an event or experience occurred even later or more unexpectedly than just "midnight". While unconventional, this phrase can convey a sense of urgency or heightened significance.
The phrase "most midnight" is not commonly used in the English language and does not have a specific etymology. It appears to be a combination of the adjective "most" and the noun "midnight". "Most" is a superlative form of "more" and is used to indicate the highest degree or intensity. "Midnight" refers to the middle of the night, specifically 12 o'clock at night. When combined, "most midnight" could potentially be interpreted as expressing something that is most prevalent or intense during the middle of the night. However, without a specific context or usage, the phrase does not have a well-established meaning or etymology.