Step 1 : Introduction to the question "What's the word for the day after tomorrow?"
...The Oxford English dictionary counts 171,476 words in current use, but there are so many more — by one count, 47,156 — that have been lost to history. Though this word is now usually considered obsolete, overmorrow is the English word for the day after tomorrow. This archaic and now obsolete word appears in the bible and throughout ancient literature. Overmorrow was in Middle English but fell out of the language. So instead of having this word, we have the wordy "day after tomorrow." German still has this very useful word: übermorgen.