Correct spelling for the English word "mayve" is [mˈe͡ɪv], [mˈeɪv], [m_ˈeɪ_v] (IPA phonetic alphabet).
The term "mayve" does not have an established etymology as it seems to be a misspelling or variant of the word "maybe". "Maybe" is derived from the Middle English word "may be", which originated in the late 13th century. It is a combination of the word "may", meaning "to be able" or "to have the possibility", and the word "be", indicating existence or occurrence. Over time, "may be" merged together to form the single word "maybe", which is commonly used today to express uncertainty or possibility.