The correct spelling of the phrase "wast vested" is "was vested". "Wast" is an archaic form of "was", and "vested" means that something has been given or granted. The word "vested" is pronounced /ˈvɛstɪd/ in IPA phonetic transcription, with the stress on the first syllable. It is important to use correct spelling in written communication to ensure clarity and avoid misunderstandings.