Pronunciation: [wɒst ˈɛɹə] (IPA) 
The phrase "wast error" is not commonly used in modern English, but it can be seen in older texts as a way of saying "grave mistake." The spelling of "wast" with an "a" instead of "was" is because it is the archaic form of the verb "to be" in the second person singular. The pronunciation of "wast" is /wɑːst/ with a long "a" sound as in "bath." "Error" is pronounced as /ˈer.ər/ with a schwa sound in the second syllable.
"Wast error" is an archaic term that is no longer commonly used in contemporary language. However, in older English literature and texts, it referred to a mistake or error that was committed in the past.
The term "wast" is a contraction of "wast" or "was," an archaic form of the verb "to be" in the second person singular past tense. "Error" refers to a mistake or a deviation from correctness. Therefore, when combined, "wast error" suggests a fault or mistake that has occurred in the past.
This phrase could be used to describe a wide range of errors or mistakes made in earlier times. It may refer to a moral or ethical wrongdoing, a misjudgment, or a lapse in judgement. It can also signify a fault in reasoning or decision-making.
The term "wast error" is often associated with older forms of literature, such as Shakespearean plays or writings from the Middle Ages. Its usage has largely fallen out of favor in contemporary language, where more modern terms like "past mistake" or "previous error" are commonly used.
Overall, "wast error" describes a mistake or fault that has already occurred in the past, and while not widely used currently, it retains its meaning within the context of historical literature.
