The word "most reallytruly" is not a commonly used term in standard English. However, its pronunciation can be broken down using the International Phonetic Alphabet (IPA). "Most" is pronounced /moʊst/, with a long "o" sound and a "st" ending. "Really" is pronounced /ˈriːli/, with a long "e" sound and the emphasis on the first syllable. "Truly" is pronounced /ˈtruːli/, with a long "u" sound and the emphasis on the first syllable. When combined, these three words create a phrase that emphasizes the sincerity or truthfulness of the situation described.
The phrase "most really truly" does not have a specific etymology as it is a combination of common English words. However, we can look at the origins of each individual word:
1. "Most": This word originated from the Old English word "mǣst", which means "greatest" or "highest". It can also be traced back to the Proto-Germanic word "maistaz".
2. "Really": This word has its roots in the Old French word "reel", which means "actual" or "genuine". It ultimately comes from the Latin word "realis", meaning "relating to things" or "actual".
3. "Truly": The word "truly" comes from the Middle English word "truli", which developed from the Old English word "trewlice". It refers to something being "in accordance with truth" or "genuinely".