Correct spelling for the English word "Leaviness" is [lˈiːvɪnəs], [lˈiːvɪnəs], [l_ˈiː_v_ɪ_n_ə_s] (IPA phonetic alphabet).
Leaviness is a term that does not have an established dictionary definition. It appears to be a neologism or a term that may be specific to a certain context or niche field, and therefore may not have an accepted meaning in mainstream English dictionaries.
Without a specific context or background information, it is challenging to provide a detailed definition of leaviness. However, it is possible to speculate on the potential meaning based on the word's structure.
One could interpret "leaviness" as a combination of the words "leave" and "heaviness." In this interpretation, it may refer to a feeling of weightiness or emotional burden that one experiences when leaving a particular situation or environment. It could indicate the mixture of emotions that arise when departing from something or someone important or significant in one's life, which could include feelings of sadness, nostalgia, or even relief.
However, it is important to note that this interpretation is simply a conjecture and may not reflect the intended meaning behind the term if it is being used in a specific field or context. To truly understand the definition of "leaviness," it would be necessary to have more information about its origin and context.