The spelling of the word "wast aroused" may seem odd to some, but it is actually a correct form of the past tense of the verb "to be" in Early Modern English. The word "wast" is pronounced /wɑst/ (wahst) and was used to indicate the second person singular past tense, while "aroused" is pronounced /əˈraʊzd/ (uh-rouzd) and means to awaken or stir up. Together, "wast aroused" means "you were awakened" or "you were stirred up" in earlier forms of English.
The phrase "wast aroused" is not a common English phrase, and there is no etymology for it. It seems to be a combination of two separate words: "wast" and "aroused".
The word "wast" is the archaic second-person singular form of the verb "be" in the past tense. It was used in older forms of English but is no longer commonly used.
The word "aroused" comes from the Middle English word "arousen", which means "to awaken, to excite". It ultimately derives from the Old French word "arroser", meaning "to moisten, to wet", but its current sense focuses on stirring or awakening someone's emotions or interest.
It is unclear why these two words would be combined in the phrase "wast aroused", as it does not form a grammatically correct or meaningful expression in contemporary English.