Here's why:
* Proto-Germanic Root: "Town" traces back to the Proto-Germanic word *tuną, which itself likely originated from a Proto-Indo-European root *dʰewn- meaning "enclosure" or "fortified place."
* Early Usage: Evidence of "town" (or variations of it) appears in various Old English texts dating back to the 7th century.
* Enduring Meaning: The meaning of "town" has remained remarkably consistent throughout its history, reflecting its significance in early settlements.
However, keep in mind that:
* No Definitive Proof: Determining the precise origins of words is complex, and there's always a possibility that other words have roots even deeper in time.
* Language Evolution: The English language has evolved drastically over centuries, with words entering and leaving the language constantly. What constitutes an "English" word is subjective.
While "town" is a strong candidate for the oldest word, it's important to remember that linguistic history is filled with fascinating complexities.