This document discusses approaches to dating Egyptian literary texts based on the frequency and lifespan of words found within texts. It notes that some words like "wjn" appear in texts from the Middle Kingdom to the New Kingdom, while others like "nkA" and "qdf" only appear in New Kingdom texts or later. It cautions that word frequency, changes in meaning over time, preservation of texts, and transmission of texts can complicate efforts to date texts lexicographically. The document advocates using all word frequencies, not just rare words, and clustering texts based on shared vocabulary to determine relationships.