The correct spelling of the phrase "wast prepared for" is "was prepared for". The vowel sound in "was" is represented with the short "a" symbol /æ/ in IPA. The past tense suffix "-st" is an archaic form of "-ed", which is no longer commonly used in English. Therefore, the correct spelling of the phrase is "was prepared for", which means that something was planned or arranged beforehand for a particular purpose or event.