“Vodka” originates as the diminutive of the Russian word for water (”voda” or вода in the proper Cyrillic). According to wikipedia, the word is first used in the Middle Ages in association with medicine and “bread wine” (as opposed to grape wine). More interestingly, vodka also carries “burning” names (e.g., brennevin) — appropriate for high proof (>80) versions. Use this knowledge wisely to win bar bets!