The word "wast mark" may seem a bit puzzling at first glance, but it is actually a simple combination of two common English words. "Wast" is a variant spelling of "was," meaning past tense of "be." Meanwhile, "mark" represents a target or point of reference in a more general sense. So when combined, "wast mark" simply means a point or target that was previously specified or identified. In IPA phonetic transcription, this word would be spelled /wɑst mɑrk/.