The correct spelling for the word "wast over map" is actually "washtovermop." The unusual spelling can be attributed to phonetic transcription, specifically the merging of syllables and sounds. The word is made up of four syllables: "washed," "over," "mop," and "er." The "d" in "washed" blends with the "o" in "over," creating the "st" consonant cluster. In turn, the "t" and "o" combine to form the "tov" diphthong. Finally, the "er" sound is added to the end, creating the whole word "washtovermop" /'wɒʃtoʊvərmɒp/.