Correct spelling for the English word "more cidevant" is [mˈɔː sˈa͡ɪdvənt], [mˈɔː sˈaɪdvənt], [m_ˈɔː s_ˈaɪ_d_v_ə_n_t] (IPA phonetic alphabet).
The word "more cidevant" does not have an established etymology, as it appears to be a made-up term. It is a combination of the word "more" and the French word "cidevant". "More" means "greater amount" or "additional", while "cidevant" is an archaic French word meaning "former" or "previous". Therefore, "more cidevant" could potentially be interpreted as "more former" or "more previous", although it does not have a well-defined and widely recognized meaning.