Correct spelling for the English word "Sive" is [sˈa͡ɪv], [sˈaɪv], [s_ˈaɪ_v] (IPA phonetic alphabet).
The word sive is a conjunction in Latin, which means or in English. Its etymology can be traced back to the Proto-Indo-European root *se-, meaning one, as one, or. This root evolved into the Latin word si, which meant if. Over time, the conjunction sive evolved from si combined with ve, meaning or. In English, sive is often used in legal or technical contexts, as an alternative to or.