The word "most vying" can be spelled as it is, with no alternative spellings. It consists of two syllables, with the stress falling on the second syllable. The first syllable is pronounced as /moʊst/, as in the word "most", while the second syllable is pronounced as /vaɪɪŋ/, with a double "i" to indicate a long vowel sound, as in "eye". Together, the word means "competing for something with a lot of effort or determination".
The word "most vying" does not have a specific etymology as it is a combination of two separate terms, "most" and "vying".
The word "most" is an adverb that originated from Old English "mǣst" meaning "greatest in amount or extent". Over time, it evolved into its current form.
On the other hand, "vying" is a present participle form of the verb "vie", which comes from Middle English "vien" or "fien", meaning "to contend, compete, strive". This verb, in turn, has roots in Latin word "via", meaning "way" or "road".
When these two words are combined, "most vying" implies the highest level or greatest extent of competition or contention. However, it's worth noting that "most vying" is not commonly used as a standalone term.